Topamax Light Headache, Epidrin, Neuroligist, Tingling in Hands and Feet, Carbonated Beverage

I am a thirty-two years old female who began taking Topamax for chronic migraine about 8 months ago. Like many, I experienced the tingling in hands and feet initally but after about 6 weeks it was very rare. I also despise the taste of any carbonated beverage now, unfortunate for me cause sometimes I'd just love to have a soda. I became very "loopy", forgetting things, not having to words to say, not finishing tasks. My husband no longer likes me to drive due to my slowed motor skills. Topamax did relieve my migraines tremendously, down from about two a week lasting on average 6-48 hours to an occasional light headache that I can relieve with Epidrin or Naproxen.
I have became seriously depressed in recent weeks and have worked with my neurologist to taper off Topamax. I lost all interest in my family (4 kids and husband) social activities, and myself for that matter. I was taking 75 mg per day and just finished the last week of 25 mg taper. I pray my migraines will not return or that we can find another med without the serious side effects. I also lost weight (about 10 lbs which I needed to lose anyway).