Today as I was leaving to go get dinner, I heard Cooper yelp.
I came back into the house to see him hopping around, which isn't that uncommon for him. He's a drama queen and he's been hopping whenever another dog gets near his paw.
So I looked around and saw something on the floor. I picked it up...and it was his last nail!!! I called him over and checked his paw, no bleeding and the bit left over looked like all the rest of his nails.
So he has now lost all 20 of his nails, and none of them have grown back. I think that we still might not be 100% out of the woods, as some of the leftover quicks still look like they might break off, but those don't seem to be quite as bad as the nails coming off. So I think we're seeing light at the end of the tunnel.
I like that he seems to feel better when they fall off. It's like he actually doesn't have any pain in that paw for a change.