Thanks for pointing that out and great to hear that you are OK now. I will definitely do more tests to find the root cause. I also heard of a test where you are

Thanks for pointing that out and great to hear that you are OK now. I will definitely do more tests to find the root cause. I also heard of a test where you are up on a thread mill, gradually varying load and they are measuring you heart parameters at the same time. Have you done this test as well?