[Emma]

I think it would be worth treating for mites, even if you think she doesn't have them. You could also try changing the bedding to something non-irritant if you are using wood shavings.



A possibility is a hormone imbalance - hyperadrenocorticism or cushing's disease. This is an increase in the level of corticosteroids, usually due to a benign functional tumour of an adrenal gland.



Other symptoms of this would be an increase in drinking and urinating, and an increased appetite - is she showing any of these signs?