Airway diseases include asthma, chronic obstructive pulmonary disease (COPD), bronchiolitis, and bronchiectasis (which also is the main disorder for persons with cystic fibrosis). People with airway diseases often say they feel as if they’re “trying to breathe out through a straw.The most common respiratory diseases LUNG DISEASES are asthma, chronic obstructive pulmonary disease, cystic fibrosis, lung cancer, tuberculosis, bronchitis, and pneumoniashortness of breath.cough that may bring up sputum (also called mucus or phlegm) wheeze or chest tightness. fatigue or tiredness. reoccurring lung infections like acute bronchitis or pneumonia.COPD isn’t curable, but it can get better by not smoking, avoiding air pollution and getting vaccines. It can be treated with medicines, oxygen and pulmonary rehabilitation. There are several treatments available for COPD. Inhaled medicines that open and reduce swelling in the airways are the main treatments.Lung function tests are a group of tests that check how well your lungs are working. These tests are also called pulmonary function tests, or PFTs. They may be used with other tests and information to help diagnose and monitor certain lung diseasesA home lung function test uses a peak flow meter or a home spirometer to monitor and evaluate any breathing problems you may have on a day-to-day basis. A peak flow meter allows you to measure your peak expiratory flow. A home spirometer allows you to measure your forced expiratory volume at 1 second (FEV1).An injury to the lining of the lung, inflammation due to an infection or invasion by cancer can all cause pain in the chest. In the case of lung cancer, back or chest pain is caused by the tumor(s) irritating the nerve endings in the pleura, as well as in the bone or muscles that the tumor is invading.