even tho two weeks ago i was hiking mountains at 11 thousand feet in yosemite, when i returned from vacation i had developed a bad chest cold which my son who is 6, also had....
after an x-ray, my doctor informed me i have copd, emphysema or some such thing,,,,,
i used to get bronchitis....once in a while an allergic reaction would lead to asphma like symptoms...but copd ????
also i had a ct scan less than six years ago that showed no such condition,, altho it did show a lesion on my right lower lung which was thought to be a scar from a bad case of pneumonia years earlier
a differential diagnosis for sudden onset emphysema-like symptoms.