Thanks guys for all your caring and thoughtfulness! For now Gunnar is doing ok, he is eating rice and hamburger with his normal dry food mixed in, twice a day, and we also have a bowl of just his dry food out that he picks at occasionally, drinks lots of water and is pooping and peeing normal and not showing any signs of pain. When I get home from work he greets me at the door, as usual, jumping up and down, barking his head off and then runs to the room where his Milk Bone treats are and waits for me to give him one. (I think it the treat he is excited about and not me being home) ;:;rofl Let me explain the scenarios that the vet explained to us that could happen to him. 1.With his heart the way it is, he could have a heart attack at any time and be gone, or the artery that is twice the size of normal could burst and he will bleed out in a matter of seconds. 2.The tumor and spleen could burst at any time and he will bleed out in seconds. 3.The tumor will keep growing in size and eventually, will start to interfere with his stomach and digestive system making him feel full, thus not eating like he should and start to lose weight. I am hoping for either scenarios 1 or 2. If number 3 happens, we will put him down. If we have to do that, I will be sitting on the floor at the vets with his head in my lap while the vet administers the shot in his leg. When he is gone I will take him myself to have him cremated. That is the least I can do for him, as he has given us a lots of laughs, love and special memories, especially while hunting and camping, in his life.