It isn't uncommon for them to go off of feed for a 2-4 months for no reason. I would continue to monitor her weight, if she loses more than 1/4 of her body weight I would try scenting her food. What were you feeding he when she would eat? I had a female go off feed for almost 4 months, finally I got worried and even though she was previously eating unscented before her hunger strike, I really wanted to get her eating again. I picked up a western plains toad at a show for around $5, set him up in a little 10 gal aquarium and rubbed the fuzzies on him prior to offering them to her, she started eating the scented fuzzies right away. I kept with scented until she had regained all the weight she had lost, then weaned her off and back on to unscented.