Anesthesia was the only thing I was worried about with POTS. Considering my body likes to freak out randomly. I talked to the anesthesiologist and he actually knew about POTS! I was relieved. I did print out a sheet of info for him from DINET. It has a blurb about patients being on anesthesia and what they may need. Just in case.
Link here:
Basically, they monitored me more than normal, put a heart monitor on me, and then gave me a bag of fluids afterwards to pep up my bp again. Then the rest of my day I spent sleeping and drinking fluids to replenish.
I'm very proud of my body and it's ability to remain normal throughout this!