I just read your other post and you are getting a thermostat Thursday and will have stable and proper temps on a go forward basis. That will help.
A few questions:
1. How old is your BP and how much does she weigh?
2. Do you know what she was eating before you got her and how often?
3. It sounds like you are feeding F/T and that's good. Are you feeding an appropriate sized prey item (feel free to ask or I can post a feeding chart if you are not sure) and are you defrosting it and offering it correctly (I can post a step by step list of how to properly defrost F/T prey and how to offer as well)?
4. How often are you offering food? When you say she has not interest, has she refused a meal, or more than one?
5. What size tank and what is the temp range (hot side, ambient, cool side) and what is humidity?
6. Are there at least two identical hides? At least one on the hot side and one on the cool side?