<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have had a nasty cough for over a week now. I have that raspy feelingsound when I breath deeply, which in turn results in severe coughing fits. I also have been getting cold sweats during these. This is the worst cough I ve ever had. No fever, but some slight nauseaupset stomach from time to time. I m 29, and a smoker, but in generally good healthfitness.  <response>: Thanks for your question on Chat Doctor. I can understand your situation and problem. Since you are smoker, possibility of either bronchitis or lung infection is high. Smokers have poor lung defense, so infections are common in them. So better to consult pulmonologist and get done 1. Clinical examination of respiratory system 2. Chest x-ray to rule out lung infection. 3. PUT Pulmonary Function Test to rule out bronchitis. You may need antibiotics, antihistamines and inhaled bronchodilators with inhaled corticosteroid ICS. So consult doctor, first diagnose yourself and then start appropriate treatment. Hope I have solved your query. Wish you good health. Thanks. 