Our expert says:
Dear Anon mp
If the neurologist did not diagnose any specific disease like MS and if your nerve tests were normal ( which I hoped they did), I think you should see a good physio. Many of these symptoms are caused by muscle spasms, triggerpoints and other soft tissue problems. When you sort out the problem in the neck/shoulder, the jerk would probably go away. They should also have tested your magnesium, potassium and calcium blood levels to ensure that this is not due to an electrolyte imbalance.
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