I suffered with depression for years before asking for help. I am on pills now. It helps me tremendously! I am able to function on a daily basis: mother, work, social, etc.. I had a weight problem before and now. I see no difference when it comes to weight loss/weight gain. Now, I perform 100% in everything that I do, except weight loss. I eat when I am stressed (binge-eater).
Hopefully this link will help you:
Antidepressants and Weight Gain - MSN Health & Fitness - Depression