Topamax and stepfather

I have been a migraine sufferer for over 13 years and have run the gammut of medications to prevent and deal with them. My mother took Topamax a couple of years ago with disastrous results. I didn't realize, but I guess she was so loopy and forgetful that it was enough to cause my grandmother and stepfather to perfom an "intervention" to get her off of it. So, here I am a couple years later starting it myself, wondering if the side effects are worth the trade off. I'll be honest and say that I love Coke. I mean, loved. Carbonated drinks of all ethnicities taste like slimy metal now. How disappointing. And considering that if I went a day without drinking a Coke, I would get a wicked migraine, I've resorted to putting Crystal Light Energy (Wild Strawberry) in my water to give me the needed caffeine.

I've also noted tingling in my face, kinda like numbness. Nothing that is earth-shattering, but noticeable. I get dizzy a lot. I've also lost about 5 lbs since starting the medicine. And today, I could not find the word "prescription" in my mental warehouse. Not a difficult word on a normal day. I've only been on Topamax for a week though. I'm going to give it a good month to see if the side effects dissipate. But if I get any stupider, I'm going to have to go another route.