The one thing that would bother me is her weight loss. You say she hasn't eaten in about a month and is much thinner than usual. Usually if they are truly brumating they lose very little weight. During brumation their bodies literally slow way down which is why they don't lose much weight. For example I have an adult male that began brumating 4 months ago, and ate absolutely nothing for about 3 months. During this time he only lost 5 grams of weight, going from 75 to 70 grams. He just starting eating again a week ago. On the other side I have a female who began a very mild brumation about 3 months ago, though she has never stopped eating she went from eating every day to just twice a week. She has actually gained a bunch of weight, like 15 grams, she's now upto 86 grams LOL
I would definately recommend a trip to the Vet and a fecal test just to make sure there isn't something going on with her. The fairly fast visible weight loss would have me worried.
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