Hi Stef,
I'm glad that the topamax is working for you. Take my word when it comes to hormones changing nothing will help with the sz. activity and headaches and that's because the estrogen level is up which causes more excitment and the progesterone level is down and it's progesterone that helps calm the nerves.
I was doing pretty good on trileptal but just like tegretol I broke out with a rash so I didn't stay on it that long. Trileptal is very similar to tegretol as I'm sure you know. Have you ever tried taking vitamin B12 once a day? I have found that to do wonders reducing my sz. and I have fewer headaches.
Just like you certain colors bother me and trigger sz. but I have noticed that since I had my surgery a few yrs. ago the colors don't bother me so bad as they used to.
Here's wishing you only the best and May God Bless You!

Sue