She was in there for 2 straight days but got out last night and went under her warm hide, so I was able to change her water and what not. I didn't see any flecks in the water to suggest mites, and I examined her head the best I could but of course her head is black.

I will give it a few days and chalk it up to weird digestive technique before I pursue it any further. She seems fine, just convinced she has a hot tub I suppose. She's back to her cool side hide now.