Although I love my vet - I still feel it's a dog owner's responsibility to do research and take an active role in their health. ATI might be rare, but Chrissy came up with a diagnosis very quickly,
without a degree? so I think your vet was somewhat negligent. However, you are the one with the dog day in and day out so you are the one most likely to know all the symptoms and with research at least get some ideas to talk to the vet about. We don't have degrees in dog heath issues, but the internet provides such a vast amount of knowledge. I know I was the one that diagnosed my Lacy with Cushing's disease and then the vet performed the necessary tests to confirm the diagnosis. That's why YT is such a great forum, there are thousands (like 9 or 10) of members here willing to help you in your research. You sound like a great Yorkie mom!