Diarrhea and insomnia

Alissa • Dear son born 5/7/18. Three angel babies. Dear son born 8/27/20 and pregnant with our first girl and last baby Pittsburgh PA-C

So the past 2-3 days I've been having frequent bowel movements and insomnia where I'm up from 230 until 430. I remember this happening the week before I had my 2nd baby but I was think I was 39 weeks when that happened and with this pregnancy I am only 34+4. I don't know if it's just coincidental or not but I'm worried baby will be coming too early. Anyone going through anything similar? Hoping for reassurance that I won't be having a premie. No contractions other than BH and I'm not bleeding or anything