Unfortunately we lost our beautiful boy Lars to this awful disease eight days ago. We had a similar experience to most. He was happy and playing on Sunday and on Tuesday afternoon we had to say goodbye. I too feel the crushing guilt like I should have known something was wrong. He woke me up in the middle of the night on Sunday which he rarely did, but I thought maybe he had an upset tummy and needed to go out. He came back in and went to bed.
On Monday morning, he was slow but ate breakfast and went outside. I thought his arthritis was acting up so he didn't feel good. I checked on him at lunch and he was slow and didn't want to go out, but he met me at the door. I went back to work thinking he just needed to rest, but when my husband came home at 400, he was lying in the kitchen and didn't react to him at all. He had to carry him to the car.
We took him to our vet who saw his spleen was enlarged in an xray, but didn't have an ultrasound to get further detail, so we went to an emergency vet. She had an ultrasound and could see fluid in his abdomen and around his heart. We then took him to Tufts near Boston for a more detailed exam, and were given this horrific diagnosis.
He had a massive cancerous tumor on his heart which was in operable and had burst, filling his pericardium with blood restricting his heart from beating. They drained the blood and he felt a little better but we were told that he could go at anytime and likely would not make it overnight,so our decision was made for us, but it doesn't make it any easier. He was put to rest with his head in my husbands lap and me nose to nose with him. The hardest thing I've ever had to do.
I love my boy with all my being and money or distance were never a hindrance to treatment. He had several other conditions and we always did whatever it took even if it meant major debt. I am devastated that there was no coming back from this one.
I'm so sorry and my heart goes out to everyone in this thread who has lost their beloved angel. Our boy was a week short of his 10th birthday, but we are trying to be positive because he was such a silly, happy boy and we have his 8 year old sister to take care of. After all, we figure he wouldn't want us sitting around crying all the time when his sister needs to play. What a horrible disease this is.