Topamax and travels

I started on Topamax about a year and a half ago at 50mg, then up to 75, then 100mg. About 3 months ago I started getting some sporatic pain in my upper arm, then my wrist and pinky finger. Over the weeks the pain increased, now it's daily pain, that travels somewhere over my arms, or legs, 90 pct on my left side, also getting neck pain. My dr. insists it's not the topamax, but lowered my dosage to 75mg, I'm not convinced. I've had MRIs, blood work, tests and everything's come back normal. I'm exhausted easily and slightly dizzy whenever I move my head (or eyes) to quickly. I'm getting an MRA this week and if that comes back normal, I'm going to insist I get weaned off this drug! If the symptoms go away, then I'll know it was the drug. If they don't, then I'll know I need to keep exploring to find an answer to my problems. But I'm sorry I started on this drug to begin with! I'd rather deal with the migraines and take the Imitrex as needed.