I'm really in a mess right now. I have depression, suicidal thoughts and no human friends, but today my dog died which to me was better than being with humans. The thing is, it was sudden. There was no indication. He was only 9 years old. I just woke up and he had trouble breathing and brought him to the vet. They gave him oxygen and tried to save him but he just died. They cannot explain it. His lungs just quit working. They did an autopsy and found no tumors, his heart was fine, he was a healthy weight, and his coat was in great shape. No signs if disease. He was acting perfectly normal up until this morning. The very last thing I expected to happen. I have a cat who's 17 and has been sick and likely doesn't have much time left. I know his end is coming but there was no way to prepare for the dog's death. I've been suicidal and this doesn't help. I just don't know what to do.