I missed the earlier threads - im so sorry to hear what you have been through, but really pleased that he is improving.
scamp, the dog my family had when i was younger, had pancreatitus and he did go on to have a quite a number of happy years with us after he was diagnosed - and he was still the character he had always been!
keep being positive, we're sending you and Robbie all the best, and crossing everything for you too.