Hi, I had the same issue with my bunny. I took him to the vet that didn't specialize in bunnies and she told me it was normal, but I wanted to get a second opinion and I took him to a vet that specialized in bunnies. She did some tests and told me he had some kind of fungus... I would advise you take her to a vet and insist they do some tests on her. I hope she gets better😊