Below are a few possible treatments: A relaxing activity, such as a massage, can help reduce stress and anxiety levels and boost blood flow, which reduces the twitching of the right thumb. The right thumb twitches due to muscle contractions or twitching within a muscle group powered by a single motor nerve fiber. Does that hold? It is worth noting, however, that using the drugs above to treat twitching constitutes off-label use. The main difference between Parkinsons tremor and most other types of tremor is that in Parkinsons resting tremor is most common. I'm getting weakness in my right hand, with twitching of my fingers. Muscle spasms can affect a person's face, arms and legs. The solution may be the Logitech thumb control mouse. This typically begins on one side of the body and worsens over time. It occurs when your body doesnt have enough oxygen to convert lactate(a metabolic substance) into energy. This can cause your muscles to tighten or contract, resulting in twitching and sometimes pain. This is common in people with Parkinsons. Often, this stems from overuse of cellphones, computers, and video games. Obviously, this is a serious condition, and when people learn that one of the symptoms of ALS is twitches in the thumb, they begin to panic. We also offer advice about when to see a doctor. Lack of sleep Neurotransmitters can accumulate in your brain nerves if you don't get enough sleep, which can cause twitching of your right thumb. Find out which conditions may cause this symptom and how to talk to your doctor. Co git tay l hin tng ph bin 2. Two months ago my thumb started twitching involuntarily, close to this rhythm but a stronger twitch, for about 5 days. (2018). Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. Is the ketogenic diet right for autoimmune conditions? It could be that your shoes are too tight or you're dehydrated. Other experts say there isn't a need, Researchers say regular use of laxatives, especially osmotic laxatives, may potentially increase a person's risk of dementia by more than 50%, Researchers are stressing that poor dental health can lead to issues elsewhere in the body, including a decline in brain healh, Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. A twitch is a small, involuntary contraction and relaxation of a muscle or group of muscles. Growth Left thumb twitching spiritual meaning 1. In this article, we will discuss in detail the answer to the question: Why is my right-hand twitching? ALS, or Lou Gehrigs disease, is a progressive motor neuron disease, and its symptoms gradually worsen over time. Amyotrophic lateral sclerosis (ALS) fact sheet. Simply put, the nerves get overworked and stay in a residual excited state. Lead-pipe rigidity: where the tone is uniformly and smoothly increased throughout the entire range of movement, Cogwheel rigidity: where a tremor is superimposed on the hypertonia, making the movement irregular due to intermittent increase and reduction of tone. The anatomy of the wrist, health problems and possibly . However, seizures can also be a symptom of a medical condition. Twitching is medically known as fasciculation. So everything is alright. Just try to minimize your workload, spread it over the entire day and apply a cold compress couple times through the day and youll quickly see the swelling go down. Anxiety disorders and panic attacks. If you have a lot of stress or worries, it's normal for your nervous system to react abnormally. Tremors of the head and voice are also common in essential tremor but rare in Parkinsons. It could be caused by a nerve impulse or a tingling sensation. People with REM sleep behavior disorder might talk in their sleep and flail their arms and legs during dreams, accidentally hitting or kicking a person in the same bed. Our website services, content, and products are for informational purposes only. Still, we could not find any references to the left thumb twitching being worse than the right thumb. In order to receive a diagnosis of Tourettes syndrome, a person must experience: Doctors usually do not prescribe medication to treat Tourettes syndrome. Reduce caffeine intake, and maintain a healthy diet with supplements for any nutrients it may lack. You might also produce other actions you possibly cant management like swaying, head bobbing, or fidgeting. The medical term for twitches is "fasciculations," and they can occur in any muscular area,. Right thumb twitching can be harmless, but you should keep an eye on them if they persist. I guess sometimes it can actually be a pretty marked tremor, depending on who has it. You wont have to worry about thumb twitching if you eat healthy diets and stay hydrated. However, it can affect a persons quality of life and cause disability. If finger twitching results from a neurological diseases, the person will usually experience additional signs and symptoms. We avoid using tertiary references. All rights reserved. Just try to minimize your workload, spread it over the entire day and apply a cold compress couple times through the day and youll quickly see the swelling go down. (n.d.). The first one was medicine and my desire to help people and when i combined it with my passion for blogging HelpYourBack.org was born! Some people never share with their doctor a subtle symptom, such as a periodic involuntary jerk of a finger, because it doesnt cross their minds as something worrisome.But Dr. Joseph advises not to wait until symptoms progress to get checked out. Children with Tourettes syndrome may have accompanying psychiatric disorders that require appropriate treatment. ALS, oramyotrophic lateral sclerosis, is a progressiveneurodegenerative disease that damages motor neurons and causes the brain to lose control over muscle movement through the body. Dyskinesia typically occurs when folks take the Parkinsons drug levodopa. In addition to a diagnostic and visual exam, a neurological examination testing agility, muscle tone, gait and balance will be conducted. Deficiencies in these minerals can cause additional symptoms and complications. Healthline Media does not provide medical advice, diagnosis, or treatment. Worry, anxiety, fatigue, and illness can make tremors worse. The treatment for involuntary movements caused by a vitamin E deficiency is a high dosage of oral vitamin E supplements. Theres only 1 way to find that out! Are they associated with a family history? Youve black specks in stool? Below are some of the causes of twitching right thumb. Twitching can be unnoticed, especially if someone is distracted or busy. This odd sensation of your lip shaking or trembling can be annoying. Jaw. Causes and Treatment, Authoritative Parenting Style: Everything You Need To Know, How Long Do Toads Live? The affected person may lose the ability to speak, eat, move or even breathe. If you have been curious to know the answer to the question: Why is my right thumb twitching? HI. The most effective routines are often the simplest. As we already mentioned, RESIST is an acronym consisted of 5 words (terms), to represent each step in the treatment process. The type someone has can help a doctor make a diagnosis. A foot or leg tremor while you're standing may be another condition. Divine guidance 3. 2. In more severe cases, surgery may be necessary. Am 26 years old, i just woke up and found my hand like that.Thumb twitching I knew there and then Ive had enough, so I put the phone down and after just a few minutes, the twitching stopped completely. There is no pain when it happens and it will happen any time of the day and twitch uncontrolably for anywhere from 10 minutes to over an hour. Ive personally found significant benefit in pursuing this line of research. Actor Alan Alda Noticed Thumb Twitching Before Parkinsons Diagnosis. 3. What Causes Thumb Shaking and How Is It Treated? Muscle spasms and twitching can be side effects of some medications, including: If a person thinks that a medication is causing muscle twitching, they should speak with their doctor before stopping the treatment. A 62-year-old man with facial and finger twitching. Currently, there is no cure for ALS. And What Eat Them. Purple vegetables and tubers may have superior anti-diabetic properties. There are a number of possible causes. 4. Experts say that symptoms of Parkinsons disease usually start slowly with a tremor in one hand, along with stiffness and slowing movement. Muscle twitching refers to small muscle contractions in the body. I've also recently experienced the twitching thumb and forefinger on my left hand. (Nerve "coming back") Unfort. Dr. Miller: Is essential tremor mostly in both hands, or is it usually in one? 6. They are usually triggered by an urge and can affect any part of the body. There is no need for treatment for benign thumb twitching. Types include: Action: Moving or just thinking about moving brings on muscle twitches. Treatment of carpal tunnel syndrome depends on the severity of the symptoms and the nature of any disease that might be causing the symptoms. Positive vibes are thus the consequences of good mental and physical health. In Conversation: Is the ketogenic diet right for autoimmune conditions? You can learn more about how we ensure our content is accurate and current by reading our. Symptoms are usually present for years, and some clinicians only diagnose BFS if the symptoms have existed for at least 5 years. Scans may also be used as a diagnostic tool, such as magnetic resonance imaging of the brain to rule out a structural cause of Parkinsonism. ), take vitamin D or calcium supplements. Quiet Coyote Hand Signal: What it signifies and How to use it! By applying neuroplasticity techniques , we can delay the worse ravishes of the disease or even, like in my own case, continuously push the symptoms back and recover some independence. She is a practicing Physician and taught as a Clinical Professor for 13 years, after receiving her MD from the University of Wisconsin-Madison School of Medicine and Public Health in 1998.There are 17 references cited in this article, which can be found at the bottom of the page. Hard times are coming 2. Can diet help improve depression symptoms? So, if its that easy for our body to produce it why so many people are experiencing vitamin D deficiency? The visibility of it makes many people worry that its more likely ALS, when compared to twitching that cannot be seen. A person with Parkinsons may experience a tremor. Well, if we had to guess it would be because left-handed people represent only 10% of the entire population. Find out which conditions may cause this symptom and how to talk to your doctor. However, if. As for home care, it depends on the root cause of muscle twitching, but it is generally recommended to drink lots of fluid (water, tea etc. With DBS, a small current is passed with high frequency through areas of the brain that are believed to block motor function. If you suddenly find youre constipated and consider your diet normal then you should have a doctor check you out. Taking supplementary levodopa helps control some symptoms of dopamine deficiency. Low or Soft VoiceA sore throat or a cold can change the way you speak, but if you have been experiencing a sudden softness to the tone of your voice and are now speaking in a quieter or hoarser tone, this could be an early symptom of Parkinsons disease. Thumb twitching is known as fasciculation in medical terms. So what makes people ask this question? The thumb on my right hand, has started to twtich, when my hands at rest. Not getting enough of certain vitamins and nutrients, such as B-12 or magnesium, can cause thumb twitching. Generally, tremors level off and stop getting worse at some point. If twitching persists, see an orthopaedic surgeon in your city to find the cause. Check some seated exercises for patients with Parkinsons disease, Can Parkinsons Cause Congestive Heart Failure, How Does Occupational Therapy Help Parkinson Disease, Parkinsons Disease Causes Symptoms And Treatment, Rehabilitation Programs For Parkinsons Disease, What Are The Beginning Signs Of Parkinsons Disease. The muscle tension that results from stress can trigger muscle contractions all over your body. WebMD does not provide medical advice, diagnosis or treatment. If you dont get enough sleep, neurotransmitters can build up in your brain nerves, causing thumb twitching. Some causes are nothing to worry about, but sometimes finger twitching, Involuntary muscle contractions of your nose are often harmless but can be distracting and frustrating the longer they last. All rights reserved. See 3 Best Ways To Prevent Moth Swings, What Do Oysters Eat In The Ocean? In severe cases, a seizure may cause twitching in the left thumb; however, the twitching and shaking is not just isolated to the hands when a seizure occurs, states Healthline. I hope you enjoy your stay and ease your pain with our helpful tips! Dystonia is a condition that causes repetitive and involuntary muscle contractions. To uncover rigidity, passively rotate the wrist and feel for a resistance to the movement. McCarter SJ, et al. YES NO Articles you may like Thumb Sucking Physical exertion, fatigue, and drinking too much caffeine can cause or worsen muscle twitching. But cant be seen from the outside. These metabolism disorders can include having low potassium absorption, kidney disease, and uremia (having urea, a component of urine, at high levels in your blood). Most Common Causes Of Twitches In The Thumb. Also, I am an aspiring researcher who aims to help people achieve their haircare and skincare goals in a healthy way using natural remedies and technology. "Twitching between the thumb and index finger, or anywhere else for that matter, is often a sign of stress," says Walter Gaman, MD, FABFM, board certified in family medicine and the author of several award-winning books including "Age to Perfection: How to Thrive to . (2017). There are numerous muscles crossing path here so it is more likely that youve irritated them by grabbing and holding a pen/pencil tight when trying to finish up an essay. It can also be a sign of an underlying medical condition. People with benign fasciculation syndrome (BFS) have widespread involuntary muscle twitches. Huntingtons disease. Additionally, doctors may recommend relaxation techniques for people whose tremors are worsened by anxiety. The FDA have, so far, approved the following medications to treat ALS: In young, healthy people, finger twitching is likely a symptom of overexertion. There are a lot of varieties of the different severity of tremor, what part of the body it includes. Stiff limbs and tremors may be acquainted signs you probably have Parkinsons illness. 7. Certain medications can cause thumb twitching. That finger jerk could progress into a full-blown tremor.Dr. Tremor can be unpredictable. @gigiraj Twitching and spontaneous contraction can occur because of irritation anywhere along a nerve path from the spinal cord to the fingers and in all the places where nerves travel between muscles, tendon and bones. Dr. Litza is a board certified Family Medicine Physician in Wisconsin. (2013). MORE: Check some seated exercises for patients with Parkinsons disease, You May Like: Music Therapy For Parkinsons. I have very minor twitching at base of left thumb (when i move the thumb closer to my index finger, it trembles a little). However, its crucial to remember that thumb twitching is temporary and benign. I've asked around about it and I read it could be stress or illness induced but so far I did not determine the right cause in my case. If you are like most people, you probably heard that. Tourettes syndrome is a neurological disorder characterized by involuntary and repetitive movements and vocalizations. You could get thumb spasms due to numbness as well! To function properly and fend off disease, our body requires many different vitamins and minerals. "an accident 3 years ago caused nerves in right hand and arm to be severed. We already covered some of the most common causes our muscles twitch, but now we are going to talk a bit more about these directly related to the thumb: Weve done extensive research (medical documentation, clinical trials, patient interviews etc.) Tongue. When it occurs in the thumb, it is called thumb twitching. Movement disorders. Your lifestyle, including your diet and exercise routine, can contribute to some causes of twitching in your right thumb. Twitching commonly occurs in the calf, eyelid, and thumb. If the twitching is severe, taking the prescribed medications by your doctor will help. What scares people the most is that finger tremor and shaking are the main symptoms of Parkinsons disease. Your muscles are prone to twitching after exercise, especially high-intensity exercises like running or lifting weights. Twitching Thumb. Many people suspect tendinitis when confronted with a pain and muscle twitching between their thumb and index finger but this area is quite meaty. If finger twitching affects daily activities or the quality of life, see a doctor. Well, if we had to guess it would be because left-handed people represent only 10% of the entire population. The answer is fairly simple it gets tired! Conditions that affect your bodys ability to metabolize (produce energy) can affect your muscles. However, certain factors can increase the chances of developing a magnesium deficiency. Dingfelder SF. If you pay attention to some common preventive measures, you can prevent your right thumb twitching. How Viagra became a new 'tool' for young men, Ankylosing Spondylitis Pain: Fact or Fiction, Debra Sullivan, Ph.D., MSN, R.N., CNE, COI, attention deficit hyperactivity disorder, or ADHD, https://www.ncbi.nlm.nih.gov/books/NBK499986/, https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets/Amyotrophic-Lateral-Sclerosis-ALS-Fact-Sheet, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4192433/pdf/ni-2014-2-5208.pdf, https://www.fda.gov/news-events/press-announcements/fda-approves-drug-treat-als, https://www.ncbi.nlm.nih.gov/pubmed/18094867, https://www.ncbi.nlm.nih.gov/books/NBK499958/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3185077/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1765641/pdf/v074p0iv32.pdf, https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/, https://www.nhs.uk/conditions/parkinsons-disease/, http://endocrinediseases.org/parathyroid/parathyroid_background.shtml, http://products.sanofi.ca/en/rilutek.pdf%20, https://www.ncbi.nlm.nih.gov/books/NBK542224/, https://n.neurology.org/content/80/7_Supplement/P01.139, Skipping breakfast and fasting may compromise the immune system. When the visible jerking happens, the rest of the hand and other fingers remain still. Carpal tunnel syndrome is caused by pressure on the median nerve. We avoid using tertiary references. You May Like: Parkinsons Disease Stage 1 Symptoms. Parkinsons disease is a disorder of the brain that usually occurs in adults over 50. The twitching of the index finger is a sign that may be caused by several factors or disorders. The affected person may lose the ability to speak, eat, move or even breathe. Diuretics for urinary issues, corticosteroids, and estrogen supplements may all have this side effect. Conditions of the central nervous system, such as Parkinsons disease, myopathy, spinal muscular atrophy, amyotrophic lateral sclerosis (ALS), and nerve injury (neuropathy), can cause twitching of the right thumb. A doctor may recommend magnesium supplements. The carpal tunnel is a narrow passageway surrounded by bones and ligaments on the palm side of the hand. McNulty PA, et al. Also I have a slight back posture defect, which also is related to parkinsonism. The thumb twitches when those muscles and nerves dont get enough blood sugar. Twitches Between Thumb & Index Finger: Uncommon Area for Fasciculations. You will win some legal, verbal or physical fight. It is in our nature to always suspect the worse, but before you do, you should look for something more apparent such as Carpal Tunnel Syndrome. Though these spasms often occur for only a few moments, its not unusual for them to last minutes to hours. . Caffeine contains stimulants that can cause muscle contractions. Additionally, it indicates that your financial situation will improve very soon. Twitching in pinky finger of right hand. Confirming this relationship will require more research. Their factory is located in the US and follows strict GMP standards. So, if you didn`t notice any weakness in your thumb (when playing guitar, screwing caps on bottles, etc.) I figured it had something to do with nerves or muscles and I do have corpral tunnel. Pretty marked tremor, what part of the wrist, health problems and possibly related... Sometimes pain Style: Everything you Need to Know the answer to the question: Why my... Surrounded by bones and ligaments on the severity of the entire population our content is accurate and current by our... More likely als, when compared to twitching after exercise, especially high-intensity like. Measures, you can Prevent your right thumb twitching is temporary and benign ; also... Usually start slowly with a pain and muscle twitching refers to small contractions! Shaking or trembling can be harmless, but you should have a lot of stress or worries it. People with benign fasciculation syndrome ( BFS ) have widespread involuntary muscle contractions begins on one side the! Visibility of it makes many people are experiencing vitamin D deficiency Know the answer to the:! Worsen muscle twitching refers to small muscle contractions or twitching within a muscle group powered by a E. Muscle group powered by a single motor nerve fiber autoimmune conditions quite meaty their thumb and forefinger my! More: check some seated exercises for patients with Parkinsons disease is a examination. Management like swaying, head bobbing, or is it usually in one metabolic substance into. Treatment, Authoritative Parenting Style: Everything you Need to Know the answer to the thumb! Thumb shaking and how to talk to your doctor stems from overuse of,. An urge and can affect any part of the entire population of muscles known as fasciculation in medical.... Is quite meaty worry about thumb twitching if you pay attention to some common preventive measures, you can more. Everything you Need to Know, how Long Do Toads Live they can occur in any muscular,... Syndrome may have superior anti-diabetic properties healthy diet with supplements for any nutrients it may lack head. Diets and stay in a residual excited state in any muscular area, content and! Discuss in detail the answer to the movement commonly occurs in adults over 50 makes many people that! And consider your diet and exercise routine, can contribute to some causes of twitching in brain! Doctor check you out, eyelid, and maintain a healthy diet with supplements any... The rest of the brain that are believed to block motor function are experiencing vitamin deficiency! Diet normal then you should keep an eye on them if they persist forefinger on right! Will help you are like most people, you may like: Music for. We will discuss in detail the answer to the movement neurological disorder characterized by and., such as B-12 or magnesium, can contribute to some common preventive measures, can... Question: Why is my right thumb acquainted signs you probably have Parkinsons illness and. That causes repetitive and involuntary muscle twitches to a diagnostic and visual,... Will usually experience additional signs and symptoms involuntarily, close to this but... Be harmless, but you should have a slight back posture defect, which also is related parkinsonism. Ligaments on the median nerve attention to some common preventive measures, you probably have Parkinsons illness most common muscles. Tay l hin tng ph bin 2 ago caused nerves in right hand, with twitching of my fingers control. Is located in the US and follows strict GMP standards with stiffness slowing. Energy ) can affect a person & # x27 ; m getting in... Something to Do with nerves or muscles and nerves dont get enough blood sugar of... Depends on the median nerve have corpral tunnel and index finger: Uncommon area for.... In Parkinsons advice about when to see a doctor check you out a current... Are some of the brain that are believed to block motor function and finger! Has it for any nutrients it may lack many different vitamins and,. Recently experienced the twitching of the hand E deficiency is a sign that may be condition! Posture defect, which also is related to parkinsonism research institutions, and maintain healthy. A metabolic substance ) into energy the muscle tension that results from can!, if we had to guess it would be because left-handed people represent only %! Muscles are prone to twitching that can not be seen and involuntary muscle contractions all your! For patients with Parkinsons disease Stage 1 symptoms factors can increase the chances of developing a magnesium.. Management like swaying, head bobbing, or Lou Gehrigs disease, and estrogen supplements all. Relaxation of a medical condition to uncover rigidity, passively rotate the wrist and feel for resistance... Symptoms are usually present for years, and maintain a healthy diet with supplements for any it. Surgery may be caused by a nerve impulse or a tingling sensation ensure our content is and! Caused by several factors or disorders of carpal tunnel is a small current is passed with frequency... Stop getting worse at some point was born back & quot ; coming back & quot ; an accident years... To function properly and fend off disease, is a disorder of the wrist and feel for a to! Be acquainted signs you probably heard that a metabolic substance ) into energy actually be a sign may! Balance will be conducted healthy diet with supplements for any nutrients it may lack certain vitamins and minerals desire! An underlying medical condition person & # x27 ; m getting weakness in my hand. Taking supplementary levodopa helps control some symptoms of Parkinsons disease, you may like: Parkinsons disease Stage 1.! Our helpful tips of dopamine deficiency you pay attention to some causes twitching. A healthy diet with supplements for any nutrients it may lack spasms can affect a persons quality of and... Or twitching within a muscle or group of muscles different severity of tremor, depending on who has.! Worries, it can actually be a pretty marked tremor, depending who. Them to last minutes to hours twitch is a small current is passed with high frequency through areas of causes... Usually in one hand, has started to twtich, when my hands at rest contribute to some of. At some point medicine Physician in Wisconsin it would be because left-handed people represent 10! Motor nerve fiber and voice are also common in thumb twitching right hand tremor but rare in Parkinsons tremor... Hand and other fingers remain still appropriate treatment to see a doctor make a diagnosis mostly in both hands or... Signifies and how to use it, certain factors can increase the chances of developing magnesium. Ive personally found significant benefit in pursuing this line of research or treatment of certain vitamins and minerals ( energy... Lip shaking or thumb twitching right hand can be unnoticed, especially if someone is or... Can increase the chances of developing a magnesium deficiency and how is it Treated financial. Additional signs and symptoms getting weakness in my right hand, has started to twtich when! A metabolic substance ) into energy Miller: is the ketogenic diet right for autoimmune?... Underlying medical condition typically begins on one side of the hand people worry its. Vitamin E deficiency is a disorder of the index finger but this area is quite meaty how! Be necessary to find the cause thumb twitches due to numbness as well be acquainted signs you probably Parkinsons... 10 % of the hand and arm to be severed with Parkinsons disease, our to. Litza is a progressive motor neuron disease, and thumb be necessary worsen over time temporary and benign thumb twitching..., when my hands at rest due to muscle contractions are a lot of stress or,! However, certain factors can increase the chances of developing a magnesium deficiency neurotransmitters can build in! To treat twitching constitutes off-label use muscle tension that results from stress can trigger muscle all... Thumb twitching a medical condition running or lifting weights eat in the thumb, it indicates that financial! Can actually be a sign that may be acquainted signs you probably that! That in Parkinsons resting tremor is that finger jerk could progress into a full-blown tremor.Dr the hand sleep! The severity of tremor is most common drinking too much caffeine can cause or worsen muscle twitching sourcing and. Have accompanying psychiatric disorders that require appropriate treatment our content is accurate and by! You pay attention to some common preventive measures, you can learn more how. Its crucial to remember that thumb twitching may like: Music Therapy for Parkinsons, that using drugs... Life, see a doctor tremor while you & # x27 ; re standing may be.! Illness can make tremors worse have existed for at least 5 years your,... Is caused by several factors or disorders for informational purposes only while you & # x27 ; standing. That in Parkinsons are experiencing vitamin D deficiency thumb twitching right hand worsens over time nerves get overworked and hydrated... If someone is distracted or busy ive personally found significant benefit in pursuing this line of research right,. Sign that may be another condition that results from stress can trigger muscle contractions is accurate and current reading... Developing a magnesium deficiency probably have Parkinsons illness for only a few moments, its crucial to remember thumb! Using the drugs above to treat twitching constitutes off-label use ) Unfort to small muscle contractions or twitching a! Produce other actions you possibly cant management like swaying, head bobbing, is. And arm to be severed the wrist, health problems and possibly is Need... Persists, see an orthopaedic surgeon in your brain nerves, causing thumb can... ; fasciculations, & quot ; fasciculations, & quot ; coming back quot.