Tmi-BM

Danielle • Married, have a beautiful daughter and an adorable baby boy! 😍
For the past week I have had an issue with having extreme cramps until I go to the bathroom! I am having very loose BM everytime. The cramps will stop for a little while once I go, but I cant seem to hold any food in! 
I ended up in the ER last weekend because I was dehydrated. 
I'll be 8 wks on Sunday and DR says me and baby are healthy! Has anyone else experienced this? Is it my hormones? Is it possibly my prenatals? 
Doctor mentioned that it could be my body or possibly my prenatals! 
Just wondering if anyone else has experienced this! I'm miserable and I'm in a lot of pain as I seem to never fully empty my Bowles! I'm hoping it's the stomach bug, but I don't think it is!