Well my dog who past away at 11 years old last March had a herniated disc is what the x-rays say, we're guessing he must of slipped on the stairs and fell or jumping off the high beds must have taken a toll. He got paralysis in his back legs and started dragging them around, I was at university at the time so got all this info from my mom in a text. She explained all the whining he did and it was hard for him to take the pills he needed, he needed help going to the washroom (being held up) wouldn't eat and always panting. I arrived home, he was in his bed panting and had his water dish next to him, I arrived home and my mom said she was told he had a less than 5% chance of recovery in surgery, he was suffering so my mom came to the conclusion to put him down and I agreed. If you think they're suffering, and if they truly are, it would be inhumane to keep them living as they are. He would be up all night panting and whining and just being uncomfortable, I'm glad he's not suffering anymore, he was a good little dog.