I had my wisdom teeth out, and although they were impacted, I opted for just freezing. It really didn't hurt, there was some pressure, but I felt fine. I know if they do put you out, they will give you anti-emetics so you don't get sick. They don't want you to get sick after mouth surgery either, it's not good for the open cuts or the stitches. Really, you will be fine. The worst part is the tenderness and swelling after the fact, and that is totally not bad at all.