Anyone getting random contractions but no labor?

Ka

I had two contractions back to back 4 minutes apart for 1 minute and then nothing. I know they were contractions and not Braxton (from experience) so I timed them. Now I’m just having irregular what feels like Braxton.

I’ll be 36 weeks and I feel like it’s too soon, but could this just be my body preparing? Or Dilating? Anyone else get this? Like weeks before you delivered?

Also- TMI- having lots of diarrhea as well- (5x)