Y'know, I hate to be a downer, but i'd suggest taking her in, if possible. I had a female pass away about a month ago, who had similar symptoms. I thought nothing of it, as she was always moody (i'd had her for about 4 years) so her not eating didn't really surprise me.

Then, one night, her color changed, which I knew was odd. 4 days later, she was dead.

Turns out she was egg bound. She'd never been with a male, and she had always been healthy.

Just a bit of caution, if things don't seem to be right.

Good luck,
Andrew
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2.1 Corn Snakes
1.2 Leopard Geckos
1.1 Crested Geckos
1.2 Green Anoles
1.0 Russian Tortoise
3.1 House Cats
0.0.1 African Millipede

RIP
Alice, Bruno, Lars, Snakey, Elizabeth