Thanks for your question on Healthcare Magic. I can understand your concern. Since you are active smoker, possibility of bronchitis is more likely. Bronchitis (inflammation of airways) can cause cough, breathlessness, hemoptysis (blood in sputum) and chest pain. So better to consult pulmonologist and get done clinical examination of respiratory system and PFT (Pulmonary Function Test). PFT will not only diagnose bronchitis but it will also tell you about severity of the disease and treatment is based on severity only. You will mostly improve with inhaled bronchodilators (formoterol or salmeterol) and inhaled corticosteroid (ICS) (budesonide or fluticasone). Smoking cessation is must so enroll in deaddiction center. Avoid stress and tension, be relax and calm. Don t worry, you will be alright with all these. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.