once years back I had a Malamute/Husky mix…he was eight months old and huge…very smart and very aggressive in play…he got sick, then even sicker..after a few days it seemed like he was near death and the vet had no clue…I was just beside myself with fear and was watching him like a hawk…I got up to go do something for a bit and when I came back he was sitting there chewing on a toy and jumped up to come over to me to play…Buzz called it a few days ago…dogs are like that sometimes…who knows?