Thank you Marianne,
Buddy has made vast improvement. He is now running around catching lizards and barking at birds. His allergies are finally under control. His stomach has settled with no further problems and he's happy and carefree. Basically, the same little busy body he was before! His stomach is much less tender and doesn't appear to be rounded as much. He is drinking far less water and is no longer peeing a river. The only cushing symptom that remains is rear leg weakness.
He is running all over the place now, but is somewhat wobbly. He is a little stiff getting up after laying down awhile. I haven't seen him quite this active in a long time! Before the meds, it was difficult to get him out of his bed long enough to go potty. He would immediately come back in and go right to his bed where he would stay for hours. Now he is everywhere, right in the middle of everything. It is wonderful!!
Thank again for all of your help. My questions never end I am afraid

Kathy and buddy