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Arm twitching while doing fine motor skills
For years my right arm has twitched/ had spasms when I would do fine motor skill tasks like writing or playing guitar. I am a guitar player and a song writer so you can see where this poses a problem. I am 20 now and it has been doing it since I was about 10. I have seen many doctors and done many tests such as an EEG and an MRI but no one can tell me why it happens. I would like to know what the problem is and how to solve it so I can write and play guitar without my arm twitching.
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Hi there.  There are certain causes responsible for muscle twitching like diet deficiency, drug overdose, and side effects of diuretics, corticosteroids, estrogens, exercise, benign twitches, and nervous system conditions like amyotrophic lateral sclerosis or ALS, muscle dystrophy, spinal muscular atrophy and myopathy. Your neurologist needs to look into these conditions one by one. The other possible cause could be multiple sclerosis and is a diagnosis of exclusion. The symptoms of multiple sclerosis are loss of balance, muscle spasms, numbness in any area, problems with walking and coordination, tremors in one or more arms and legs. Bowel and bladder symptoms include frequency of micturition, urine leakage, eye symptoms like double vision uncontrollable rapid eye movements, facial pain, painful muscle spasms, tingling, burning in arms or legs, depression, dizziness, hearing loss, fatigue etc. The treatment is essentially limited to symptomatic therapy so the course of action would not change much whether MS has been diagnosed or not. Apart from clinical neurological examination, MRI shows MS as paler areas of demyelination, two different episodes of demyelination separated by one month in at least two different brain locations. Spinal tap is done and CSF electrophoresis reveals oligoclonal bands suggestive of immune activity, which is suggestive but not diagnostic of MS. Demyelinating neurons, transmit nerve signals slower than non-demyelinated ones and can be detected with EP tests. These are visual evoked potentials, brain stem auditory evoked response, and somatosensory evoked potential. Slower nerve responses in any one of these is not confirmatory of MS but can be used to complement diagnosis along with a neurological examination, medical history and an MRI in addition, a spinal tap. Therefore, it would be prudent to consult your neurologist with these concerns. Causes of strokes can be investigated like high blood pressure and high cholesterol along with brain hemorrhage. Take care
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