I've never checked Bug's insulin. Does the vet do that, or can you test blood
sugar as you would in a human diabetic?
As for life span with Cushings, I've always heard that the horse or pony is
much more likely to die either of related symptoms (founder, etc.) or old age
before the tumor becomes a problem.
Bug is 20 years old come March 23rd. I fully plan for the old coot to be with
me another 10-20 years!