I was prescribed Topamax for prevention of migraines, since they ...

I was prescribed Topamax for prevention of migraines, since they are getting worse, and my usual meds didn't seem to be doing the trick. I only took it for 9 days at 25mg dose (1X per day) and at day 8 I awoke with the most HORRIFIC back/side pain, I could hardly stand. It worked for my headaches, but now I still have back pain, and I have to call the doctor, as I am showing serious signs of KIDNEY DISTRESS. To the best of my knowledge, I did NOT have any issues with my kidneys before taking this med, but I may now. I was told about many of the side effects, but NOT this one. I sure hope this drug hasn't pushed me into some kind of renal failure. I would rather deal with the migraines any day. Thanks, Topamax!