I would highly suggest getting some bloodwork run on your girl. She may be diabetic. Actually of her symptoms fit even to the walking low on her legs as this can be a neurological condition caused by elevated blood glucose. It would also be a good idea to have a full blood panel on her instead of just a glucose because she is bordering geriatric years which brings a number of other issues into the picture including Cushing's disease, kidney disease, and hyperthyroidism.
Please let me know if further assistance is needed.
Theresa
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