I haven't had the surgery yet....but I did read that it is normal sometimes to feel depressed and have mood swings...perhaps your doctor could see if you need some temp meds till you are feeling a little better..I know that it has to be such a huge adjustment...mentally and physically so don't be so hard on yourself...I also read that someone said that taking the prilosec or something like that helped with the hunger not sure how...when you feel hungry and want to eat maybe you could call a friend or surf the web till it passed....only suggestions....not sure if they will help but I hope so...I'll say a prayer also.