Thanks Donna and Blue Majo!

My colonoscopy and biopsies were normal. She ordered some blood work (drawn yesterday) and 6 different types of stool testing (dropping sample off today).
She's thinking maybe celiac disease, cholestatic diarrhea (sometimes happens after you have your gallbladder removed), bacterial overgrowth, or bacterial infection.
IBS is probably out because I've been continuously constipated for years- suddenly frequent diarrhea for 2 months.

I'm still not feeling well. Exhausted, pain, diarrhea, now asthma is kicking up d/t allergies. I'm taking mucinex D, it seems to be working for my sinus congestion, but it makes it hard to fall asleep.