she may just be having an off day, like most women do (sorry couldnt resist the pun) i would just keep an eye on her, if she continues not to eat, i would advise a vet visit after 5-6 days (or any dramatic weight loss or signs of being lethargic)
For sale 0.1 VPI Pastel Royal
<---UPDATED - 24/07/15 -
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<------ Got a snake that wont eat READ this first.