Are you taking Topamax for migraines or as a mood stabilizer? I took it for the latter, and it made me REALLY anxious, and emotional... and I had a 2 second recall of verbal statements, not good when you attend lectures daily.
I take Lamictal now, and it's incredible -- within a couple of months I went from being severely depressed to being functional and happy. It also helped w/ my anxiety.
Also, I take Vistiril as my anxiety med, since Xanax didn't really help me.
Good luck in finding what's right for you!
Jessie