First of all, welcome to the Healing Well forum. I am so happy that you came here for advice. This is a very comforting and informative place to be.
Hopefully when you see your doctor he can help you with the weight loss issue. I have heard that sometimes you can take topamax for weight loss, though it is an anti sezuire medicine. Either that or maybe he could switch you to something else.
I wish you much luck with this.