That's a possibility. In the wild, breeding season is triggered by climate to a large degree. Another consideration is her age and weight. If you haven't weighed her, I'm willing to bet she's right around 1000 grams at that age. There's a pretty well documented tendency to go off feed around that size. I wouldn't start sweating a fast just yet. Keep temps/humidity stable and correct, and keep offering food at regular intervals. Eventually she'll take it.
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