I feel like I'm coughing my lungs up but I do not smoke, why?

Coughing up lungs . Your cough could be due to a number of things other than smoking, including viral and bacterial upper respiratory infection (whooping cough, etc), pneumonia, tb, allergy with postnasal drip, astma, acid reflux, and side effects of medications. You really think it's a smoker's cough, it could be due to secondhand smoke.