She is well cared for Ive had her 18 years and we are not sure how old she was when we rescued her from a wildlife place - maybe 5. She eats and sheds regularly and her heat side is 29.7c. She moves around happily when she's not asleep on her heated bed (she has no access to direct heat to burn her)
What might it be?
Happy to take her the vet is required.