Yeah, that's why I'm confused about the citrucel. It's fiber like you said, whereas the other two my doctor suggested are obviously not. I wonder if citrucel (or any kind of fiber, really) is a lot safer.

Now that you mention GI doctors, my old GP suggested the Miralax on a daily basis and that's how I got the diarrhea. Even the bottle says to use it on a daily basis (so she wasn't wrong about that), but even taking half the dose gave me diarrhea. Yet if I didn't take it everyday, I would never poop. like wtf. There was no in-between.