Becoming harder to breathe after quitting smoking, what to do?

Not unusual: After people stop tobacco, the lungs' mechanisms for cleaning themselves out start to work again, and often there is increased coughing and production of phlegm than there was before, sometimes associated with feelings of shortness of breath because of the coughing. Usually this improves in several weeks, but if you are really short of breath, you should see your doctor for it. Congrats4 quitting.