Hi I have a 2 year old female ball python. I recently took ownership of her from my brother. She only ate live food with him and i wanted to attempt to change that to frozen. I was successful. I have been able to get her to eat one large rat a week for a month. But now all of a sudden she refuses to eat, its been 16 days since she has eaten. I have been attampting to feed her once a week still. I though she may be about to shed becasue her scales are becomming a little dry on her back. The humidity of the tank is usually between 60 and 80 %. The temp range is constant. She isn't displaying any other signs that she may be sheding. Also she is looking little thinner than normal. Should i be worried?