I ended up having to take the dog to the vet today. Woke up and his one leg was all swollen. The vet ran some bloodwork and turns out he tested positive for 2 different types of Lyme disease. He must have picked it up this fall when he was out hunting. While I was there with him she checked him over and discovered he has testicular cancer. I take him back in 2 weeks to discuss having him neutered and to see what other steps we if any we need to take for him.