My bichon is a real little sweetheart and has just been diagnosed with this. Although I've heard of it, I don't know anyone who's had a dog with it.
My vet is great and has explained it all in simple English but I was just looking for others' experiences.
Little dog is 7 and very tiny. She was a rescue and I suspect there's a bit of poodle in there too, she's a clever little madam!
Symptom-wise, So far we have thinning of the hair on her back and one episode of excessive drinking and piddling. Her levels of cortisol are sky high.