Hi Jenny! Welcome to the Home Theater Forum. I'm sorry its under these circumstances. It is right to cry and feel sad about the loss of your dog. But the sadness should not come from a fear that you might've done the wrong thing. We are our dog's caretakers and we need to provide for them. They cannot take care of themselves. And, our dogs don't reflect pain and disease the same way us humans do. Our dogs are stoic, strong creatures who don't always show when they are in pain. You don't say how old your dog was. But there are times when such sad things need to happen. Be sad. Your dog loved you and you loved him. It is only because of these loving, caring relationships in which both sides give a lot to each other that the loss hurts so much. The hurt will get better...but it will also take time. And that's normal. I am sorry for your loss. Thanks for sharing your story.