ibromyalgia
"I was put on this medication for fibromyalgia and basilar type migraines by my neurologist in high school. I originally went off of it because I could not handle the side effects. I was then bullied by my mother & doctor into going back on to it because "it was my only option". 
I became face blind, could not navigate my way around even with a map, memory difficulties. issues doing simple math, became asexual & had no motivation to interact with people. 
Towards the end of my time on topamax I was so depressed that I would just sit despondently.
I switched doctors and she immediately stopped it. 
The side effects went away after stopping the first time but after the 4yrs on it I still have some side effects that haven't completely gone away."