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You may be experiencing tics.
Tics are many of the times benign and with no underlying disease .At times tics can be associated with muscle disease
, psychiatric problems.
I advise you to visit your Physician initially and get examined to come to a conclusion.Treating the underlying condition can easily get you off from the symptoms.You should also think about visiting Psychiatrist
Hope I answered your question.If you need more information feel free to mail me.