i went through the same taughts before last tuesday when i had the gastric bypass. it scared the hell out of me a day before. i was sure i wont wake up, i said to my self is it realy worth it ? i waited 5 years for the surgery and heard many good stories and many not very very good. i decided to go with positive energy to the surgery.the surgery went perfectly good. the recovery is not very easy, because it is a complicated surgery. make sure your family and friends understand and support you.