Pneumonia is inflammation (swelling) of the tissue in one or both of your lungs.
Our Health A-Z contains more information on Chest infection.
Lung cancer is one of the most common and serious types of cancer.
Our Health A-Z contains more information on Lung cancer.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.