I started Topamax October 12 my Neuro said start at 25 mg and work up to 50mg in the morning and 50 mg at night. The first week I was tired like most people have mentioned. Almost instantly Diet Coke tasted terrible. I was a little dizzy and light headed. DC still taste flat but the other symptoms have gone away. I have never experienced the tingle or weight loss. I am on a low does. No stomach problems for me. One thing is my cramps this month were 2x worse than normal . I am 45 and on Topamax for migraines mostly I think hormonal. I am going to give this a fair shot. I really have not felt more energy. I really wish it would help in that way. I am also taking wellbutrin and prozac for depression that runs in my family all the way from my Great Great Grandmother. I too have have a mild headache off and on when I would normally have a migraine and a advil took it away. I had to take an imitrex last night, and am hoping that is the end of this hormonal headache for the month!