I think that your mental attitude going into surgery has a lot to do with a persons mental state after. I have had a Nissen Fundiplication, that is when they wrap 1/3rd of your stomache around your Esophagus because of pre cancer, 2 Abdominal Aortic aneurysm surgeries, the last 1 a year ago, and many shoulder and elbow sureries and that doesn't include kidney stones 12 times. I was the same happy guy coming out of them as when I went in. I might be the way I am because I have fought to live since I was born and not supposed to live, then when I got older they didn't think I would be able to ever walk. I wish you well and hope you don't have any mental problems. Get those positive thoughts working for you.