Diarrhea relief

Marlana
Last night before bed, I got some rough period like cramps. I took some Tylenol and thought I'd wake up if it was labor and went to bed. At 3am I woke up with horrible diarrhea. It's been none stop and the cramps are killing me. Baby is moving like crazy, so I know he's fine. Anyone have any advice on what I can do for relief?? (35w1d)