Hello. I can't really add anything to what others have said, but just wanted to say I am very sorry for your loss. Sudden death is shocking and leaves many unanswered questions. You may never have the answers, but probabilities suggest heart attack. I hope you and your family can reach a stage where you remember all the happy, carefree, adventurous and loving times you shared with your best friend.
Tony
Thank you. We are still having a very hard time with it. Started the week out with him, I got a new car and he jumped in it the night before, inspecting it. I kissed him goodnight. He ate his meal in the morning with my dad and went back to bed with my mom like always. Even kissed and licked her. She said within 10 minutes from that he had his attack. Even he didn't know what was going on. Our golden had a lot of health problems and lived until 11. Our lab was so healthy and energetic, barely getting white on his face, just under his chin. We believed we had so many more years with him, yet he was still taken from us. It's more of a shock because it was so sudden and at such a young age.
So sorry. What a terrible shock. The only way to possibly know for certain would have been for the Vet to do a necropsy. It could have been his heart, a stroke, just no way to tell for sure. Sorry your Mom had to go through this. They certainly did all they could under the circumstances.
sorry for my grammar. hard to even write this down.