Maybe nothing: Fasiculations occur in normal people from time to time, often not visible to others but easily felt by you. They can be related to muscle strain, electrolyte imbalance, dehydration, and often have no obvious cause. If of short duration (a week or two), I'd leave it alone and see if it's not self-limiting.. If persistent, a neurologist should be consulted.
Answered 11/21/2020
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?ulnar nerve: Fasciculations sound benign Seem to be in ulnar nerve distribution. If associated with hand numbness and weakness, contact your regular doctor
Answered 11/28/2020
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