So, every time I get constipated (not often), I think of you.
You never told us what happened to the older man who turned and hit you.
Have you read the non-fiction book by Stephen King. It is relatively short, but a great book on Write and the beginning of his journey. The last chapter, though, is the story of when he got hit by the van when he was taking a walk. He describes everything in detail including his frustration with the driver of the van.
I think it will even make your plight seem better. I can always get you a one on one interview with him given he lives 10 minutes away.
Finally, grab your chart and schedule a colonoscopy for two days from now. The end result is always take until clear. Usually with mine, it is about one small bottle mixed in 48 hours, 1/2 one day, then 1/2 the next. Take three to four squares of Ex-Lax. But, as they say, or as I say, if MiraLax isn't working, you aren't getting enough. It sounds like they are using a maintenance dose like what we use once we get a four-year-old cleaned out. 1/2 capful bid, titrate to effect.
Hell make it three days a way and take the MiraLax faithfully. As far as preps go, there are 50 different ones, by 50 different GI doctors. Hell, I would go with Jon's.