Crowe, I don't have any advice - just my sympathy. This is almost the same path I walked with my Jimmy (mini Aussie-poo) - the biggest problem I had was his perpetual "puppy state of mind" - he would play like he was a kid again (despite being blind), and kept hurting himself. And then being diabetic, the injuries didn't heal unless he was on antibiotics. He too was getting clingy at times; or would get "lost" at night (he slept with us, wearing a male diaper at night) And he too was losing weight, in spite of eating a large meal twice a day.... I have no idea how many times he had me in tears for him....