Hey y'all

I have a three year old female that has been acting strange. She has become extremely active at night and hasn't ate a single rodent in a month. In fact last week I left a live rat pup but she killed it and left it. I have also tried leaving a dead rodent over night and tong feeding her. She shows no interest in eating. I read other forums and it seems that she shows signs of wanting to mate.

Her temps (90 degrees in her basking area) are fine and I mist her twice a day. I havent had any complaints with her in the past three years besides her recent hunger strike. How long should I wait before I take her to a vet?

Thanks in advance.