### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I am 39 I have had shortness of breath fatigue and discomfort under my right rib, i am a smoker from the age of 13, i get a metal like taste in the back of my throat, it feels like my lung is blocked sometimes.  I have had two chest x rays. I have coughed up blood, but i dont know if that is caused by coughing hard.  I have had blood tests etc, possible CFS but i dont know why it feels heavy in my right rib area, i havent lost weight as such, but i dont have an appetite.  I constantly worry about lung cancer, and still smoke (stupid i know)i have a constant fuzzy head, i do have a lot of stress and have for a while, i know i need to stop smoking and reduce stress

### output:

Thanks for your question on Chat Doctor. I can understand your concern. Since you are a 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 albuterol) and inhaled corticosteroid (ICS) (budesonide or fluticasone). Smoking cessation is must so enroll in dead diction center. Avoid stress and tension, be relaxed 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.