I have participated in this kinda operations at a low level. Once a week or so. I have never had a patient remember anything after anesthesia. There were a coupple that seemed to respond to pain. Their sedation was increased then it went a way. They awoke reporting no unusual distress. This is scary, every operation is. However this is far less common than any other the more likely complications. Those are particularly unlikely as well. None of these are not really worth worrying over. Thr car ride to the doctor is far more dangerous.