I have to agree with a lot of the posts here. I have been put under twice and it's not nearly as bad as you think. When I had my wisdom teeth taken out, I was really nervous and cried before surgery. But, they inject the Fluid and you are OUT within seconds. After that surgery, I woke up and was really loopy. I was saying all kinds of crazy stuff, but that was also because my whole face was numb and I was so confused by that I started laughing and then I would start crying. At the time, not so funny, but now it's pretty hilarious to think about. I basically went home and slept it off. However, I did get very sick and threw up for 24 hours between sleeping.
My second time being put under was just three months ago for orthopedic surgery. I was on the operating table and a few seconds later I was out like a light. I woke up in recovery and they were asking me about my pain. Then, I fell back to sleep and woke up in my room. I was still a little loopy after that surgery and remember singing the subway $5 foot long song and saying "okaly dokaly" a lot! haha. They gave me a pepcid before that surgery, so no nausea afterward - thank God! It really isn't nearly as bad as you think. It's like a great nap. Good luck with your surgery and don't worry at all! I'm looking forward to my great nap for my surgery!!