I had my first one about a month ago, but didn't choose blue because they specifically said no red/purple and I thought blue might be risking it. Ended up going for yellow citrus. Did you also have to do the Miralax mix or was it a different laxative?
I think the worst part of the process besides waking up constantly all night to paint the toilet was even the next morning a few hours before my exam my ass was still acting like a geyser. Driving to the hospital I was terrified I'd spray anal Gatorade all over my car.
In any case, colonoscopy came back totally unremarkable. They did it because I had two diverticulitis attacks in the last year, however the diverticuli they did find were so small and few, they kind of mystified why I even show any symptoms.