@itisi
While I don't know of anyone who has had a D&C without anesthesia I would think this is a possibility you can discuss with your doctor. Since I had a hysteroscopy and a D&C when I had spotting here is what I do know. The uterus needs to be distended (basically inflated) to allow the physician access to visualize the uterus and do the procedure. In order to distend the uterus CO2 (carbon dioxide) is introduced through the cervix. That's what I experienced however I had anesthesia so I wasn't uncomfortable during the procedure. I was uncomfortable when I woke up because there was still that gas in my uterus. Once the gas was absorbed which took a few hours I felt better. For many people, that introduction of the gas can be uncomfortable. So this is something to discuss with your physician who will do the procedure and find out what they recommend.

By the way, CO2 is what is usually introduced into the colon in order to do a colonoscopy. My husband has colonoscopies without sedation and he doesn't mind the brief periods of discomfort. Still, each time he has a colonoscopy he has to first discuss this with the doctor who will do the procedure.

When is your procedure scheduled?