Does anyone else have a dog with Cushings' Syndrome?

My 14 year old cross is being tested for it, she has become a little lethargic and drinking a little more.

To being with the vet thought she was diabetic using a a dip stick to test her wee but the the blood results proved her sugar levels were fine and having bought the same dipsticks from the chemist and testing her myself for several days I never got the same positive result for sugar as the vet first got.

She had a Ultrasound looking at her liver which was normal & ACTH stimulation test yesterday, just waiting for the results today.

If it turns out positive she will be on a life time daily does Vetoryl.

Just wondering if any one has any experience of a dog on this drug?