I can't address all of that. As a layman (not a doctor) I don't think most of those are related.

Bad stomach pain and bloody stools could be a sign of a serious stomach problem. If I were you, I would get that checked out right away--and don't distract the doctor by talking about non-stomach problems, unless he asks or you really think it's related. And do NOT take any aspirin or anti-inflammatories until you find out what's wrong with your stomach.

Good luck.