It all went well today. My colon was mostly okay, though there was some red lining that they biopsied to see what antibacterial meds I need.
Side note: Anesthesia is kind of awesome. One moment I was sitting there, cringing because the nurses were listening/swaying to some Rihanna song, and the next minute I was waking up, babbling incoherently and ready to leave. Good good times not remembering any of it.