Extremity pain symptoms and conditions

I've been on Topamax (100 mg 2x per day) for 5 years as mono therapy for epilepsy. I switched over from Depakote which was a *nightmare* and it has been great, no seizures. I've had the pins and needles, diminished vocabulary and memory, and intermittent eye twitching but this week my right eye (why is it always the right eye?) has started twitching almost constantly. It is frightening and embarrassing and I am not sure what I should do.. I guess it's back to the neurological drawing for me because I am not sure why it's happening now. Has anyone else had the eye twitching occur after long term use?