public place, workplace, where smoking is permitted, you may have incurred a chronic obstructive pulmonary
disease (COPD) from
second-
hand smoke. Also, working in construction, with asbestos or other related materials, or other occupations where chemicals are present (fiber board, plastic manufacturing, etc) you may have damaged lungs without realizing it. Were you prescribed medication, and have you seen a pulmonary specialist or did your family doctor diagnose this?