I had to do that before my surgery as well. I avoided the complication stories as much as possible especially the serious ones. Others, such as pain in shoulders, or gas, or other things I wanted to know about and be prepared for. The serious complication stories were just making me too nervous and wondering what the hell I was doing! The nerves really kicked in about two days before for me. I told my husband that I felt like I had just gotten on a roller coaster ride, had strapped myself in and was getting ready for it to start moving. Waiting for that "lurch" that was going to take me to unpredictable places. It's a pretty good analogy and I stayed that way until they wheeled me into the OR and I shifted my fat butt onto the operating table! LOL It will seem sort of surreal, you will be short tempered and a little withdrawn and introspective, but you will wake up in recovery all sleepy and they will make sure you are comfortable. If you are experiencing pain or nausea, make sure they know. They will give you additional medication to make sure you are feeling okay. That is what they are there for.
It's really going to be okay.