I have had really bad anxiety for a couple years now and I recently started on zoloft about a month ago and I feel like i'm in a different world. I find myself staring for long periods of time and it scares me because I do this while driving. Along with alll of this my head and body twitches, and I get these brain shivers, and migraine headaches, and blurry vision. It litearlly feels as if there is a lack of brain activity or soemthing...Any help would be greatly appreciated....I dont want to go to the doctor yet until I know more because i'm sure they'll just say its all anxiety. Any ideas?