i misjudged the size of a rat i last fed my ball python, who is about 2 and 1/2 years old and a little over 3 feet, and now she is refusing any and all food for the past few weeks. i have checked all the heating, humidity, and have cleaned the cage, but nothing has enticed her to eat. i intend to wait a week or so as to perk her interest more and try and wait this fast out, but i cant keep wasting money on rats, despite their smaller size now. is there anyway i can know when she is ready to begin eating again?