Is one eyelid/eye twitching which lasts over a week a sign of multiple sclerosis or any other neurological prob? when worry? no symptoms except it.

Not a sign: Eyelid twitching is very common and usually due to stress, caffeine, sleep deprivation, dehydration or due to medications etc. If you dvelop any other neurological problems then seek medical attention. Take care.

Myokymia: Most likely answer is benign myokymia, which usually associated with eyestrain, fatigue, electrolyte imbalance, and is usually self-limited, and benign