I never knew of all the rules with no food on operation day or even water. The lady i met with was like "if you brush your teeth in the morning u better not drink the water
". And all the pain killers you cant have because the thin the blood.Im getting it in a little over a week
I had surgery to repair a torn ACL in my left knee 5 weeks ago (one week before Tiger had his) so I know what you're going through. I wasn't allowed to eat anything from midnight until my operation later that day at 8:30 AM. Just eat a big meal the night before and this shouldn't be much of a problem.
There really isn't much to be worried about. I was noticeably nervous on the day of my surgery, but everyone was so nice and caring that I found that my level of anxiety actually went down as the time for surgery grew nearer and nearer. Everyone was so reassuring that I just grew more comfortable with the situation and realized that the doctors should probably be more nervous than I am considering they're going to be the ones doing all the work.
As for the pain aspect, technology today allows you to get through surgery and the recovery process with the least amount of pain possible. I was on an anesthetic pain pump, which pumped an anesthesia directly into my leg, for three days following my operation. As my anesthesiologist put it, "the pump works as a continuous nerve block and can hold off pain for days." So I went through what should have been the most painful part of my recovery without really feeling anything (my whole leg was just numb). I was on some powerful pain pills for the next few days and about a week after surgery I was off drugs completely and found that the pain was manageable.
Just be sure you go all out on your recovery exercises. You really can't work hard enough. For the first 2-3 weeks I found myself doing about 3 hours of rehab a day. It was painful at first and I'd go to bed tired and sore every night but when I woke up in the morning I always felt stronger. Only 5 weeks out and I've started jogging/walking 3+ miles per day to go along with a little biking. I'm only 20 years old so I'm sure that's helped with my fast recovery but so has all the work I've put in.