Your temperatures on both the hot and cool side are way too low. Her cool side should be no less than 75 degrees (I keep mine 77 - 79) and her hot side should be around 90 degrees. If you want to have something in there for her to soak in (which really isn't even necessary for Ball Pythons), I would have it in the middle of the enclosure. She needs to be able to lay on her hot spot to digest her food properly. If you aren't using a thermostat to regulate her hot spot temperatures, get one immediately. What kind of heating pad are you using? Is it made for reptiles or humans? What are you keeping her in? You need to get all of your husbandry spot on. Even with perfect husbandry, Ball Pythons are picky, inconsistent eaters...