This query is for my mother - 45yrs. She has been complaining of the feeling of shaking on and off for few years. The problem is that the shaking is not visible outside (as her body doesn't actually shake) but she feels strong shaking. This happens only when she is about to sleep or when she is waking up, no matter if it is night sleep or day. My grandmother had Parkinson's so my mum is scared in case this is a symptom. What could this be? Which doctor should we go to? Currently she takes sleeping pills. Another great problem is eyes  blurry feeling