Here's your last post (as you said you couldn't find it) and it looks like you got some good advice in it:
www.healingwell.com/community/default.aspx?f=38&m=3786685It's really hard to say what you have (infectious proctitis, or ulcerative proctitis) based on your posts. If you doubt the findings then get a copy of the colonoscopy and biopsy reports and see what they say. You can get a second opinion from another doctor, and we have a few wicked smart folks who might be able to help if you post the report text. We're not doctors, but have seen enough doctors and had enough tests over the years to at least know a little...
If you suspect a STD then you can get tested for it, to confirm or rule it out.