The mood swings might not be from the anasthesia, but from some of the other drugs they pumped into you. You need to talk to the surgeon, the anasthesiologist, and your own doctor. If your emotions are out of whack from the chemicals, maybe there are some dangerous physical side effects going on too. I haven't had emotional side effects from surgery, but once I had a bunch of acne after a minor procedure. The dermatologist told me to call the doctor and get a list of the drugs I'd received, and she pointed out one as the likely culprit. My advice is to get a written list of everything they put into you. Then consult a pharmacist, psychologist, and internet and think about other side effects.