Hi - your rabbit will be pulling fur out of her dewlap - it is the big roll of fat under their chin that is usually bigger in females. They usually do this when they are pregnant or having a phantom pregnancy - what is she doing with the fur? is she placing it in a corner of her hutch to make a nest? Have never heard of rabbits pulling their fur out in pain - I have heard of them chewing legs etc where the site of pain is - but she would not be pulling it out of her dewlap if this was the case I don't think ; 0 )