Topamax and seperate

I started right out 3 years ago on 100 mgs. and within a couple weeks migraines were virtually gone! I thought it was a miracle! Only slight side affects for a couple years and only an occasional migraine but not a three day long one. So, I figure, small price to pay for all that relief, right? Now, for the last 6 months or so I'm falling apart! My memory is just gone! Sometimes I'm afraid to leave my house because I'm afraid I'll forget my way back home! I can hardly concentrate long enough to put a meal together and it just took me 4 tries to remember how to spell concentrate! Thank Goodness for spellcheck! I've lost 42 lbs. that I can ill afford to lose and I now I have started to have these anxiety things that I've never had before. I feel scared and nervous and no idea why. I was on a couple of drugs for allergies, a couple for arthritis and a vitamin. I dropped everything except the Topamax and the DR. put me on a 1/2 mg. Zanax twice daily for anxiety which seems to do nothing except make me sleepy. Now it seems all these side affects have just bloomed and I have this constant ache over my right eye which isn't a migraine but never goes away. I'm afraid to just stop the topamax because of what I've read about suddenly stopping. Doctors are no help, they won't even admit there is a problem. They just wanted to check my thyroid.It was fine.