I have been on topamax for 3 months now. Most of the side effects have gone away, but I have noticed that my personality seems to have changed. I am having problems with anger and aggression. People have described me as being "mean". I am also having a hard time laughing and being happy. I seem to be serious all the time. Has anyone experienced anything like this? I don't know if this is the drug or just me, but I could really use some advice. Thanks!