Contractions...what would you do?

I’m 29 weeks. Last night I was up for a couple of hours with contractions that were anywhere from 5 minutes to 15 minutes apart per wave. I know the feeling because I went into natural labor at 39 weeks with my first. Last night I was throwing up and diarrhea from the intensity of the cramps in my lower back and abdomen. By the time I considered actually going in, they stopped completely. I haven’t had anything now since 5am. Am now resting and drinking lots of water and feel great, but since they have stopped...would you still go in to get checked out??? I’m going to call either way. Maybe it was a crazy stomach bug?