Butt pee is normal, very strange feeling at first but I had the same thing and I've done the cleanse twice, if your taking the physillium husks and Bentonite you should get a little bulk in there some times. Oh and get this, on my second cleanse I had butt pee for 3 days then full on solids came out! That's disgusting!!!! And people don't believe me!!!
Can't help you out on the mucoid plague, haven't had that experience yet? Hope it's all still going well.