On Sunday, March 8th, I asked my white German shepherd dog, Salty, if he wanted to go for a walk. He seemed depressed so I thought it would cheer him up. He didn't really seem up to it, but would follow me to the ends of the earth so away we went. He didn't run ahead as he usually does, he barely kept pace with me, and he actually stopped once as if he was tired. I got very concerned so we turned around and went home. I called the veterinarian.