Oh dear, she's not looking good. Unfortunately, that picture confirms that she does have metabolic bone disease, that's why her tail looks like that and why her legs aren't able to support her but there are also other concerns right now of course too.
I would hold her in your hand and give her a
bath. Drip some water on her nose again and see if she will lick it off.
Would be a good idea to get some saline eye wash, the type used for humans to wash particles out of their eyes, NOT the type of solution used for contact lenses. Or, you could get some Turtle eye drops from a pet store.
Do you think you'd be able to pull down on the side of her mouth and put a small amount of chicken baby food in there and then rub her beard to try to get her to taste & swallow it?
We need to know more about the thermometer you're using, very important. Is it a round gauge (dial) type?