Diarrhea in pregnancy

I am 15 weeks pregnant, and having a bad time.

I had a “stomach flu” is what I call it where I couldn’t keep anything in my stomach. I would just be running to the bathroom even after drinking water. This is at 9 weeks.

Fast forward to a month later I am back at the same place. Constantly having stomach cramps. I can’t keep anything my stomach. If I get a burning sensation in my stomach I throw up, and if I eat or drink anything I get cramping, and diarrhea.

Anyone else have any type similar story or experience?

My doctor now wants a stool sample 😩😩