Everyone has the same worries right before surgery. The fear is much worse than the reality. Well, actually, the pre-surgery prep is not too much fun either. Just remember to follow your Dr.'s orders to a tee. When you are being pestered to get up and walk, just remember walking is the best thing you can do. I was worried about getting the shoulder pain from the gas but that didn't happen. The best thing about when you follow your dietary instructions is you WILL lose weight quickly in the beginning. That is the best part of the experience. Of course, it slows down, plateaus and gets harder later but in the beginning....it is GREAT!!