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Hi I have sleeping problem last 15 days in suddenly I have uncontrollable shake leg and hand and shoulder what is that.
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A�hypnic jerk,�hypnagogic jerk,�sleep start,�sleep twitch,�myoclonic jerk, or�night start�is a brief and sudden involuntary�contraction of the muscles�of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment. There is nothing to worry.
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