I had braxton hicks when I was in my late pregnancy and they did feel like bad cramps. That's normal. I'm really not sure what the diarrhea has to do with it, but the body does go out of wack with pregnancy :) Don't worry, I'm sure it's normal, but talk to your doctor if you have any doubts :)
Alright, thank you (:
I have an appointment with my doctor on Tuesday so I'll ask him then.