thank you guys for the good wishes.
I'd like to make a sort of Public Service Announcement to all:
Go get a gaddam chest X-ray.
I quit cigarettes 7 years ago, and got a chest X-ray, all good. And I got one 6 years ago, 5 years ago, and 4 years ago. They were good, too. Then it slipped my mind for the past 3 years...stupid Chief.
X-ray exam is cheap, quick, and insurance co.s consider them 'preventative' and are very likely to cover a good portion of the cost.