Bought a temp gun, works great. The only thing I'm worried about is the cool side was a little cooler than I thought it would be...but at least now she's moving back and forth between the warm side and the cool side instead of being stubborn on one end.
I picked her up for the first time in a few days today, and she balled up when I reached for her, but immediately uncurled and started moving around when I was actually holding her. She seems to be adjusting all right, so I'm relieved about that.