<s>[INST] my neck and lungs are sore when I breathe deep like when you having been running hard in cold weather. it feels sort of like that otherwise nothing else. I just got over a bad head cold at the beginning of last week. what could this be, possible bronchitis with no cough? [/INST] Thanks for your question on Chat Doctor. I can understand your concern. Yes, possibility of post infectious bronchitis or lower respiratory tract infection (LETI) is more in your case. Both these conditions are common after viral upper respiratory tract infection (URI). And both of them cause pleuritic pain (chest pain on deep breathing). So better to consult pulmonologist and get done clinical examination of respiratory system, chest x-ray and PFT (Pulmonary Function Test). Chest x-ray is needed to rule out LETI. PFT is needed to rule out bronchitis. You may need antibiotics, inhaled bronchodilators and inhaled corticosteroid. So better to first diagnose yourself and then start appropriate treatment. Hope I have solved your query. Wish you good health. Thanks. </s>