@merpreb I haven't called yet. I'm waiting for the results of the test I take this week. You may remember I had pneumonia in March In my follow=up chest x-ray a few weeks later they found a small "infiltrate" My doctor scheduled a 2nd x-ray. I put it off. I'm scheduled this week. In part I put it off because I don't think it was realistic to find a completely clean x-ray that soon after pneumonia should be expected? . A small patch of dead infectious material should be expected? Assuming this x-ray is clean I will schedule the Mayo exam. My concern is going to doctors they tend to find things. The findings may demoralize my arduous work-outs and runs. The fact that I can do so much physically I believe has saved my life. I don't want anything to interfere with that. So unless they can really help me improve my athletic performances and I don't believe they can, what is the point of letting them test me just to report problems?