Hi, I've been taking Topamax for about 3 years continuously. I've had some stomach cramps twice that I went to the doctor complaining about. Each time they sent me for x-rays. First time, nothing. The second time, which was just a month or so ago, I had an x-ray, then a CT scan. They said I had a small kidney stone in my bladder. By the time they gave me the results, my aches were gone, so they said I must have passed it. They never gave me any advise or anything and I still had some pain after I spoke to them on the phone. Topamax does have a side effect of causing kidney stones in some people.
It doesn't make me want to stop it, though. I really like Topamax.
Hope you feel better soon.