Diseases of the Respiratory System Disease Bronchitis (Chronic) Symptoms Sharp chest pains, coughing, difficulty in breathing Cause Inflammation of the membrane that lines the bronchial tubes Emphysema Shortness of breath Decrease in lung capacity as the alveoli are damaged Lung Cancer Shortness of breath, chest pain when breathing or coughing, fatigue, vomiting or diarrhea Smoking, family history Viral Pneumonia Shortness of breath, fatigue, chills, muscle aches Viral infection Bacterial Pneumonia Chest pain, fever, shortness, tiredness Bacterial infection Asthma Coughing, wheezing, difficulty breathing, chest pressure Contraction of the walls of the bronchi; constriction of air passageways Treatment