What did they do to my arse? (colonscopy)

[horsebox]

First off I don't have colon cancer I just couldn't find any other forum relating to my question at all. So a few days ago I had a gastroscopy followed by an colonoscopy. The procedures were swift and afterwards they told me that the doctors found nothing wrong but for some reason they took a biopsy. The nurse said they wanted to examine bacteria. Now 2 days later theres something gone wrong with my arse. I took a **** about an hour ago and not only was is painful and smelt a lot worse than usual but there was a funny looking blotch of blood in the feces. I seem to have developed a serious case of hemmorhoids. In the shower when I washed my arse this morning it was painful and I could feel lumps sticking out. I should mention that my *** was in bad shape ever since I took the laxatives because when I'd finally cleaned out my system all that was coming out was water and bile and the bile wreaked havoc on my arse. Any information or advice on the matter would be greatly appreciated. Thanks.