I played sports heavily all my life, high school varsity football 3 year letterman in Ohio, 13 years of baseball, the works, and I never had breathing problems really, except walking pneumonia during my senior football season. Its been about 2 and a half years and about
six months ago my breathing became very difficult, my lungs felt tight, I coughed up brown chunky phlegm, and felt low on energy, like i don't have enough oxygen or something. I smoked about half a pack a day.