Typically not: Brief, multifocal trembles and twitches are typically not serious. Occasionally they are caused by caffeine, thyroid problems, benign neurological issues (e.g., cramp-fasciculation syndrome), certain meds, anxiety, low calcium disorders, and such. Sometimes it is the result of a prior viral infection, even. If it persists or worsens, then visit you doctor. Best of luck!
Answered 2/10/2017
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A doctor has provided 1 answer
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