Devestated is the only way to express how I felt when the vet said my beloved Bullet 11yr old GSD was suffering from either total liver failure of liver cancer. I took him in for tar like stool as I knew there was a problem. He was not himself. Although he suffers from severe hip problems and skin problems, he was slower than usual and did not respond to me much at all. He's on anti biotics in hopes it is a liver infection. Because of his age, exploratory surgery in not a good option. He appears to be wasting away before my eyes. He's pretty lethargic but he gets stints of playfulness every now and then. It's only been 2 days and we're hoping for the best with a liver infection. However the vets can feel a fist sized lump in his belly. It seems like just yesterday that he was a young fireball running through the yard. I am trying to spend as much time with him as possible. He keeps barking at me like he's trying to tell me something. It is cute and sad at the same time. It feels like my heart is being ripped out.