She might be what I call, taking a break. I've noticed that with the juveniles and older that I power feed will take breaks every now and again. I'm not sure how much she weighs, but if she gained a lot in a short time, she could definitely be on a break. I wouldn't worry too much about her. If she's got weight on her and she was a good feeder for you before she'll eventually eat for you again. Just keep offering once a week. I highly doubt her bad shed had anything to do with her not eating since she usually sheds well and most likely doesn't have any issues from old sheds piling up.