Yes! I had the same problem, during entire 2nd pregnancy, and after. I would suggest seeing a gastroenterologist since it's been a couple weeks. I wound up with microscopic colitis, praying this is not at all your case. Were you recently on antibiotics? Testing for C.Diff, ova and parasites, stool culture would be a good start. Preferably through Genova diagnostics CDSA; lab corp and quest and hospitals miss a lot. Cure zone forum would confirm this. Enterolab stool test is pricey but may help rule out food triggers/allergens. Also, testing for celiac would be wise. I am so sorry! I do completely understand. My youngest is 2 1/2 now so I have spent a great amount of time becoming educated on diarrhea and causes.
Did you deliver vaginally or c-sect? My 2 hrs of nonstop pushing w/ 1st baby started the diarrhea. I didn't think much of it because it was D 1x/day. I made the mistake of thinking, "ahh well, I guess it's from pregnancy". Learn from my mistake, better to figure it out now than later. Hopefully, it is just a passing bug but I wouldn't hesitate to get a doctor on board.
I should have began by saying, congratulations on your baby!!!!
My best,
Iriechic