Weight gain tends to make me more depressed more than anything; probably because I am one of those people who care about how they look. I know it's ridiculous but I get really upset when I gain weight. I'm okay with a pound but there was one medication that made me gain 20 in two weeks and the only thing that fit was dresses that clung to my stomach area that made me look pregnant and man did people like to comment about that. I am desperately trying to lose the weight too.
I am also ashamed to admit my pant size. I try to work out like do yoga and swim; my gym has a nice Olympic size lap pool that I really liked. My best advice; although I really need to follow it to is to find something you like. I really like yoga it clears my head; and swimming is just so relaxing.
I used to lay in bed a lot during my depressive phase; try and find one thing that you want to do, I would play with a coloring app on my phone. I felt like I had accomplished something not to mention it was just very therapeutic.