Our Trapper (age 13-14?) was not feeling well so we took him to the vet and ran blood work, fecal, urinalysis, etc. We took him in because of pain he was having where he would just suddenly yelp and run around. We learned he has a variety of things wrong. He has a heart murmur, has something going on in his spine which is probably where his pain was coming from, is anemic from a mysterious chronic illness, his blood proteins were low and his urine was dilute (the latter has been going on for years so was not a surprise.) He was on pain pills but they just made things worse and he refused to eat. We stopped that but continued him on with Rovera (Carpoften). He stabilized enough that we were able to go our vacation and leave him at home with the dog/house sitter. He had no issues in the week we were gone. We are picking up antibiotics for him today and I am going to buy liver for his anemia. I do not know if that will work but he will like it. He also has cancer, a large fatty tumor on his front leg. We had it removed once and it is a type of cancer that is slow to spread. The tumor itself is about the size of a baseball but he cannot have surgery again because of his heart murmur.
He is eating well again and is wagging his tail. So I am happy too.