Hi and welcome to you and Chancey!
It can be quite a challenge to unravel a diabetes/Cushing's diagnosis since so many symptoms are shared by the two disorders. This is further complicated by the fact that the diagnostic blood and urine tests for Cushing's can render false "positives" in the face of diabetes. I don't know whether you've already seen this article, but I think it will be of interest, it's titled: "Diagnosing Cushing's Disease in Dogs with Diabetes Mellitus" and it's published by a nationally-known endocrinologist, Dr. Mark Peterson, here's the link:
https://endocrinevet.blogspot.com/20...e-in-dogs.html
I also want to include a link to our sister site where they deal with diabetes in dogs, here's that link:
http://www.k9diabetes.com/forum/ Now you'll have the best of both worlds!
Can you tell us what symptoms Chancey is displaying? And what diagnostic tests were performed? Could you post all abnormal findings from the tests that were done on Chancey and please include the reference ranges and units of measurement?
You can find excellent information about Cushing's in our Helpful Resource Forum, which is located here:
https://www.k9cushings.com/forum/for...Cushing-s-Dogs
Please do not hesitate to ask all the questions you have and know we are here to help in any way we can.
Hugs, Lori