I'm scheduled for surgery on 5/24 and I know just what you're feeling cause I'm feeling it too. I'm not so much worried about the surgery itself but whether or not I'll be able to get through eating small portions and tiny bites of food. But when I start thinking this way, I try to focus on all the great things that are going to happen because of the surgery--my knees and hips will stop hurting, I can be more active, I can buy cute clothes and wear a belt, I'll live longer and be healthier--that makes my doubts go away. I hope your surgery goes great!