Hi ! You have not mentioned about your bowel habits. The pain may be due to some adhesion formation between your intestines and the scars of the previous operation, which may be causing some kind of subacute intestinal obstruction
. Another cause of the pain could be the ovarian cyst
itself for which you have already been given treatment. You can go ahead with your colonoscopy
to exclude any other patholgy for your bloating.
In the meanwhile, you may start taking some proton pump
inhibitor along with a probiotic which may relieve your bloating. In case the colonoscopy report is also inconclusive, I would suggest you to discuss with your gynaecologist/surgeron for a diagnostic laparoscopy
. Wishing you an early recovery.