I noticed I lost weight when I was smoking back in the summer, but I just thought it was stress. I've lost 40 pounds this year. I didn't notice any changes in my bathroom habits, though.

I really don't know what might account for more frequent pooping, unless weed does you like coffee or other warm liquids and, for some people, cigarettes, and touches off your gastro-colic reflex. That's the reflex that happens when you drink coffee or take a bite of two of food of some kind and then pretty quickly have to go empty your bowels. Cigarettes cause that in some folks, so it makes sense weed might, too. But I think the other explanation, that you're perhaps eating more wtih the munchies and so speeding up your body's through-put of food, makes perfect sense, too. I'm lucky if I go every other day. I need to eat more. And also get more fiber. Heck, while I'm improving my life, I also need to smoke weed. But that'll have to wait.