I don't have huge troubles with detox - I mostly just get really lethargic/lazy feeling for a few days, maybe very light nausea or headaches. I could be healthier but I'm healthier than average.
I know the laxative thing is a huge debate with people very strongly on both sides of the fence but I prefer to opt out. *shrug*
Hey - cool you're going to a full fast although I stick to water rather than dry fasts for my own reasons. Good luck. :)