Topamax and whole life

Been taking Topamax 300 mg a day for the past 4 year. I also take 450 mg of Wellbutrin. This is to help with migraine. Although my total count of Zomig pills I took last year was 120 pills and some of those I broke in half so I wouldn't have to use a whole pill for a migraine. So that mean, with the Topamax and Wellbutrin combined, I still had at least 123 migraine this past year. Three months of migraines. That's insane. I can't stop the "Dopamax" because my doctor says it would be really bad with it. I have terrible memory loss, forgetfulness, and loss of words that is embarrassing. The nurses did not inform me of the side effects when I first started taking it and I thought I was going crazy. I started looking up ADHD on the computer thinking I had developed it as an adult. I was made at the nurse when she asked me how I was doing remembering things and and if I was stumbling for word......I wanted to slap her off her stool.........at that point it was NOT funny.