This extends from simple limb twitches to more complex integrated movement, in which sufferers appear to be unconsciously acting out their dreams.
en.wikipedia.org Small twitches of the upper or lower eyelid, for example, are not tics, because they do not involve a whole muscle.
en.wikipedia.org When they sense potential food nearby, they commonly twitch a toe to attract it within easy reach of their tongues.
en.wikipedia.org Other symptoms may include tingling of the skin (paresthesias), prolonged muscle spasms, weakness in the limbs, nerve pain, muscle twitching, palpitations, and functional bowel disturbances.
en.wikipedia.org Other symptoms may include increased irritability, vomiting, diplopia, seizures, twitching and myoclonus of the limbs.
en.wikipedia.org