I'm glad to hear you're feeling better. There are many of us on Topamax. There's a long post on the many good and bad side effects. You will either like it or hate it. Neurologists seem to think it's the greatest thing for migraines right now though many of us are still not sure it outweighs the side effects.
My advice is take it really slow. Let the side effects wear off before increasing the dose. The neurologist may have recommended increasing the dose by 25 mg / week (most do) and that can be too fast. Unfortunately, if you do, by the time you realize and try to back off you go through severe withdrawl.
One common side effect is tingling in your fingers and toes. Increase your potassium intake by eating a banana or other food high in potassium or taking a suplement. Another is forgetting words - mostly nouns - topamax is sometimes nicknamed dopamax. And the best is weight loss, but be careful because the desire not to eat can lead to headaches because you end up forgetting to eat.
I also ended up feeling nauseous which resulted in really fast weight loss and I felt horrible. I feel much better now.
Good luck and ask your neurologist lots of questions.