Don't feel bad, you are not the only one, I also gained weight..I've been trying to workout, but can't do like i used too. I was up to 6 days a week, and lost 10 lbs, gained muscle def, now I gained that back. I'm lucky I can do 3 days a week and of course not at the same intensity. Don't be hard on yourself, remember your body has been thru a tremendous shock (not sure what other word to use for it). Good luck w/your journey.