I was diagnosed petit mal epilepsy many years ago. My doctor thought we should try switching medications. I took topamax for about a month with no problems. I did experience the tingly sensations in my fingers and I also had to give up sodas due to the bad tastes. But once I increased my dosage to 150 mg, I started experiencing a new side effect that I have yet to find anyone else complain about. My doctor says it's not Topamax, but it only happens when I take this medication. My eye was twitching constantly. It would only stop for about 30 minute intervals every few hours. Once I stopped taking topamax, my eye stopped twitching. I thought perhaps I was just stressed or fatigued, so I tried to go back on it. Once again when I got back up to 100 mg I noticed it would twitch once the medicine was in my system. I suppose this is some sort of facial tremor.