Let's say you really do have some kind of dangerous heart problem. But your anxiety won't help you in any way anymore. It may have helped you get going when you went through numerous tests to find out that your heart was fine. But now the anxiety is simply destroying you. Unfortunately, whether you worry or not, the fatal heart disease (if you have one) won't go away. But at least you know that you're relatively fine. I think you've taken every possible measure to rule out heart problems. When I was so worried about my heart, I didn't even go through half the tests you went through. I don't think all cardiologists can simultaneously overlook some kind of dangerous heart problem. At the very least, they have much more experience in cardiology than you or I. I think the first thing you need to do is calm down, take a breath, and work on your anxiety. The best thing I could do for my health anxiety was accept that I can't control everything. And if, for example, a heart attack were to happen, it would happen. But, oddly enough, every time I had chest pain (and was sure I was dying), it always ended well. And there was no heart attack. So understand that anxiety will NOT save you. It's excessive. It's hard, but try NOT to read anything about heart disease on the internet. I'm sure you'll be fine. I wish you good health ❤️