So very sorry. Have been therre, done that multiple times and am heartbroken every time but I DO realize, after decades of animal care, that they don't live as long and are fortunate to have a euthanasia option. I had a 14 yo dog euthanized in september of this yr.(all of my animals seem to live into their teens and it IS part of my care to end it when they are no longer comfortable etc.) and she was one of the hardest to date(according to my heart). This dog, Ruby, had elevated liver enzymes for appx. 5 yrs. and it was a waiting game. after 5 yrs. of cooking fish/rice/collard greens for her she developed an inner ear imbalance(unbeknownst to me!!) and I thought she was done(this was march 2012) Have NEVER experienced this ailment, so live and learn. Took her to the vets(she could NOT walk) and they looked at her eyes and told me, most likely, she simply had the ear problem. So-euthanasia turned into a few weeks of getting her appitite/balance back and me just feeding her whatever she would eat(which ultimately helped ruin her liver but she was happy to the end eating canned dog food!!!)Last week of her life she became inappitant, dull eyed, shakey, acted like she was trying to tell me something and I just know and its over. You cry on the way, you cry during, you cry on the way home, you cry for having to bury(my son did the bulk of last-thankgoodness) and then you get pictures out and laugh at the silly things they do thruout their lives and healing starts. I sound dramatic but I have to get thru it quik and this is how I do it and have TOO many other critters that need attention. Let yourself love the dog now and know kindness is ending it when THEY have had enough and they don't know its over. Thats OUR burden to bear. I wish you peace and love him as much as you have and it will be OK.