Good luck to you. I had my surgery on Monday. It was really not a bad experience, I'm trying not to beat myself up for being so nervous but now that its over it really was not bad at all. I was sure I just would have a horrible experience. I only took pain meds twice. The only thing I would recommend is take in all the fluids you can. I stayed overnight in the hospital and got five liters of IV fluids and was still dehydrated. I drank fluids constantly but it just wasn't enough. I got dizzy and my bp dropped, it recovered quickly but I was still surprised. I have not really been all that hungry. As far as the smell of food goes, that will still entice you but I really didn't care if I ate any. You will do just fine and just remember to keep a positive attitude.