What can I expect after oral surgery and multiple tooth extraction?

I am 34 years old and am having all of my top teeth removed and all four of my wisdom teeth. My surgeon will be stitching all holes and I am wondering what I can expect. I am scared to the point of high blood pressure. I will be having dentures placed in immediately after surgery. I will be completely sedated but am still very very frightened. Can anyone tell me if they have had this done and what I can expect. The pain does not scare me but the throwing up does. Is this common with oral surgery?