Had a good talk with the vet today. Diarrhea problem persists, but the problem seems to be a stress-related bacteria increase so got some antibiotics and diarrhea medication to help.
Apparently has had some serious weight loss. Hasn't been eating at all at home, hopefully she'll start to get hungry once the antibiotics help.
Going to the vet was much more stressful than it should have been, but at least I got her checked out. Scheduled for shots, coming up in two weeks. Now resting comfortably on the sofa. Heyyyy that's where I was gonna go after this very long day!
I was trying to figure out what Molly's other half mix was since she's an Akita mix. Closest picture I found was a pitbull-akita mix, so that might hint at her submissive/protective behavior. In any case, she's still the sweetest girl around.