Thanks, girls! This is all very helpful. One question: if he gets up in the middle of the night to go out, say 2 or 3, would a 7 or 8 still be considered the morning pee?

If it does turn out to be Cushing's, I would definitely start him off at 5mg.

I'll call the vet Monday and see how receptive he is in working with me this route. I always took Gable home in between the ACTH testing. He's been very good about how I wanted things done with Gable, but the owner is not as cooperative. He poo pooed everything I learned here. He will be looking to make money off the testing. I definitely don't want to do the LDDT.

Can fruit and veggies be snacks for him?