ATTN: Gary Lisac In your posting you didn't state whether your friend was taking any medications for his early Parkinson's. Could he by chance be taking Artane or Cogentine? My neurologist put me on Artane for two years when I was first diagnosed and I experienced a *vibrating* sensation in my head which was most disturbing. I also had some tingling sensations throughout my body and head and would get the *chills* on just one side of my body. I would also occasionally get pain in the side of my head (fleeting sharp pain - not like a headache (although I may have had headaches too but I don't remember that like I do these other weird things.) I was so glad to get off Artane when my doctor reluctantly said he would start me on Sinemet. I hope this is helpful, Gary. JANICE LONG .