Have you had a stress test?
I'm 64, and haven't had a stress test in many years. I push pretty hard on summer bike rides, and swim more during the off season. Can the test show potential problems? I guess that's what it's for! I had a bad reaction to the antibiotic Cipro, with tendon pain. Now I read that in rare cases it can cause aortic tears as well! My tendon pain went away after a long 8 months. I certainly will ask my doc this question at my next visit, as well.