Having googled COAD I now know it is the same as COPD.
to give a little history, I gave up smoking 17 years ago and took up running about 4-5 months ago (have run/walked 4 x 5k park runs to date) However on one of my training runs after my first 5k I found I was struggling to take deep breaths. This has stayed with me ever since (even when not exercising) My doctors initial thought was running induced asthma, however the chest x-ray shows early COPD. As I have a chest infection at the moment I haven't had the breathing test (not sure of the medical name of that) and can't book it for 6 weeks after I finish my antibiotics. Currently in shock a little, as am only 47, and am otherwise normally healthy. I breath normally currently but have to force the last bit of a deep breath.
Not sure what to expect but not sure of life expectancy etc, prognosis?