Sorry to hear that. Real hard to let one go like that. We have an old dog that keeps on ticking, he's 16 years old. Just when we think he's going he back to normal. Know it will happen one of these days but as long as he's in no pain and eats good and does his duty outside we'll have to wait for that day. Once again, sorry to hear about your loss of a good buddy.
Thats how we knew it was time. He loves being in the house and will stay in for a solid 24 hour period but always wants to go outside to do his buisness at least once a day. this time hadn't ate or drank in over 2 days and in those 2 days wont get up to even go across the room much less go do his buisness. He just finally hurt to much to move.