Right sided intermittent sharp pain (3wks post endometrial ablation.& appendectomy) also feeling full fast when eating & burping alot (bowels working)?

Right abd pain. Right sided abdominal pain after an appendectomy, especially with symptoms you describe may indicate continued inflammation of the tissues at the appendectomy site, with partial paralysis of your intestinal motility. See your surgeon who performed the appendectomy for an exam.