I had a hystorectomy in July of this year ever since then I have periodic pain on my lower right side near the appendix area. I do think I have IBS ever since I had my Gall Bladder removed about a year ago, one day my stool will be hard, the next diarrhea today it was the latter and after the pain would not subside. I took two tylenol and then became nauseated. Finally had to take pain pill and the pain went away.