Gastrointestinal stress...

Kristen • Momma to 3 beautiful girls (2 of which are identical twins). Trying for final pregnancy (hopefully a boy!)
So this might be a tad bit of TMI... but I'm 15 weeks and lately I have been struggling with bouts of diarrhea and when that's not happening I have regular looking stools but when I wipe it's yellow... regardless of the stool type, it is yellow. I'm a little nervous about it and hope it's nothing major... everyone on my mom's side of the family has had gallbladder issues and my mom has also had liver issues: none during their pregnancies however. I go to the doctor in a couple days so I'll ask then, but is anyone else struggling with this sort of thing?