I'm sorry OP. I am in the same boat. I have been off for a month and have surgery coming up too, and the lack of exercise is drivng me crazy. I have gained some weight but I also "feel fat." I would not do any specific diet, but maybe work with an eating disorder specialist to find a healthy way to eat that wil allow you to achieve your goals. I also have felt the pull of ED but my kids keep me grounded---I know I dont want to afflict them with body issues.