They told me i had colitis, but everything came back fine, and they said it was just IBS. Lately i have been having bad tailbone pain, and sometimes when i breath in, i get a stabbing pain in my right side. I was wondering, if this could be my appendix, i read that your bowles become inflamed with the appendix, i was wondering, if the stabbing pain is the appendix, if anyone can help me out, that would be great! thanks