Thank you, Elyse! She must have heard you. At about 11pm (way past my bedtime) she did come out, and she ate nearly a whole can of Fancy Feast!
I feel better when I know she's getting some food into her. Especially some wet food, because she was a bit dehydrated when the vet checked her, and she got some sub-q fluids there.
I get so worried when I don't know if she's eating.