Strong crampy contractions thru the night & they were very painful but irregular. And vomiting up a storm...very dehydrated most of the night but keeping fluids down now! The contractions subsided so it makes me wonder if it was something I ate? Anyway, has that ever happened where labor begins, dies off, and returns later in the day? No bloody show or mucous plug. I have an appt to get my cervix checked in a couple hours.