I'd be careful and monitor your emotions/behavior with your doctor closely. I'm sure many people do well on topamax, but my doctor prescribed it as a mood stablizer as well and it literally made me feel worse in mood--I was having suicidal ideas, which I didn't have before. I went right off it 2 weeks later and felt better. Later, a new doc told me topamax was on the bottom of the list for stablizing mood and I'd be better off with lithium. But that is a whole other nightmare.
Good luck! Let me know what your experience is!