I just started taking Topamax a week ago today, and have already seen a tremendous difference in how I feel. But today I started "two a day" dosage and my fingers and face are very numb. Is this normal? I would call and ask my doctor, but last week after the first day of taking the medication I had the worst migraine I had ever gotten while at work and the dr never returned my call, and still hasn't. So please any advice would be greatly appreciated!