Trust me, all that working out will stand for something even if they find something. My husband was always very physically fit. When he was diagnosed with bone cancer he was able to tolerate the hard treatments, and still continue to do well. He is in his 70s, and still way ahead of most with his disease, we attribute much of that to workouts, marathons, etc. even though he has been unable to do continue it after diagnosis. Walking is his friend now.
@auntieoakley I'm sorry to hear about your husband's cancer. I hope he's able to do some level of exercise.
I just got off the track.I jogged a 5k. Between the wind, the heat (90's) and the COPD I struggled to hold 12 minute average miles. But that's ok. When I started 15 years ago, when I was first diagnosed with COPD, it took me 1 year to get up to 1 mile at 15 minute pace.