Hey Susan, my family and I have a very low tolerance for medication. The first time I had anesthesia I woke up very very nausea. Most everyone in my family has the same side effect. Now I ask the dr's to give me anti- nausea meds before I go under. I can't think of the name of the med they give me but if it does hit me I will let you know. A lot of people have this same side effect. My sister just underwent a 9 hour surgery and woke up fine. The dr's give you all these possible side effects and scare you but usually none of them happen. Please keep us posted on what you decide to do.