i almost wonder if he had heart failure, or a brain injury, could of been a deformity from birth, bones do seize up, like his mouth, tell me did he have this look in his eyes like he was saying everything will be ok, let me go, im sorry,
sounds like he had hip displasia, which anti inflamitory did they put him on,
do you remember if he was dehydrated, was his skin stiff??
What kind of aspirin did you give him?
I'm so sorry for the loss of your pet, there is a website called "In Memory of Pets' if you or your family members need help copeing with the loss.
I should probably add that he hadn't been eating very well until we have him the pills. When the pills started wearing off, he was hungry, but it was like he couldn't eat. He'd pick up dog food then spit it back out. He threw up everything he had in his stomach before this. I was eventually able to get him to eat some chicken Saturday night. He was drinking though. Sunday when he woke up, I tried to give him an aspirin (the vet told us it was okay to do so as long as we didn't give this and the anti-inflammatory medication to him together) and his mouth would not open. I had to give him water through a syringe. When you picked him up, it was like he couldn't hold his body up at all. He could not stand at all, it was like he had no function of his legs.