Topamax and ovulation

i started taking topamax because of my migraines which i would wake up with them daily. the first week i started topamax 25 mg.(once a day) i was dizzy, lightheaded, silly, "drugged" sleepy (all day), stumbled over my feet, my head was "cloudy". now is my 5th week and i am 25mg in the am and 25mg at bedtime. i don't feel silly anymore. no migraines!!! i am happy now. i get tingly fingers and toes but that is nothing compared to my head throbbing every day all day long. sometimes my chest feels tight but i don't know if thats related to the drug or not. overall, i am satisfied after i got through the initial start-up phase. i did have to stop taking my birth control pills though because they wont be as effective. :(