Would a rat pup be more enticing, left in her enclosure over night for privacy? Our girl recently decided she won't eat for show anymore - only in her tank in the dark.
Or you could go with opening her mouth and placing just the nose of the rat pup in - I'm no expert, but I've heard it done before to provoke the feeding response.
She's not breathing hard is she? Like with her whole body? I haven't read your other threads, I don't think; but has her behavior changed at all?
My only other thought is that maybe she is sick. Refusing to eat could be a symptom. IMO, you should take her to a good herp vet if she doesn't eat soon and continues to lose weight.