I'm not sure on the mechanism of hypothermia. If you get wet with rain and the temps are in the 80's can you get hypothermia? Quick google search says water temps of 70's. I know hypothermics can get confused and start taking off clothes. Will need to check weather underground for temps in time she was gone. As far as her shoes go, if she was a flip flop wearer I can see them giving out and needing to resort to bare feet. Even with foot rot in sneakers, I'm not sure I would abandon them.
I'm on the fence.
My husband is sensitive to the environment in Houston. Even in long sleeves, working in the yard carrying brush, his arm and sides will look very similar within a 3 hour period. Mosquitoes, fire ants, poison ivy, something else to be determined, he'll break out in hives that look very similar to where the plant has contacted him within a few hours.
The big one for me is the weight loss. Takes about 3500 calories to lose 1 pound. She was losing roughly 2 pounds per day if the news stories are accurate. Based on her height and weight, her BMR should be around 1400-2600 calories depending upon her muscle level. If she picked up giardia or something equivalent by drinking the water, a lot of that could be water weight. Picture of her in hospital could be after fluids which would puff her up a bit. If she's diabetic as I have read not sure how it will all work.
If those weights are accurate, I think she hasn't eaten well for 28 days. Even if she was holed up in a cabin, she wasn't eating and only marginally drinking water.
I find it hard to believe one could wander around in the woods for that long, knowing how the sun moves. I explored all over the Boundry Waters in MN before the days of cell phones. Had a basic paper map, no compass and found my way around pretty efficiently. Granted I didn't have a potential medical condition that would confuse me and I'm also 42 yo (before relying on technology) ((does that make me sound old?)
ETA: all I mean by the old comment is I knew how to get around without technology. It wasn't efficient, but I knew my survival counted on it.