Shortness of breath, especially during physical activities
Wheezing
Chest tightness
Having to clear your throat first thing in the morning, due to excess mucus in your lungs
A chronic cough that may produce mucus (sputum) that may be clear, white, yellow or greenish
Blueness of the lips or fingernail beds (cyanosis)
Frequent respiratory infections
Lack of energy
Unintended weight loss (in later stages)
Swelling in ankles, feet or legs
