<s>[INST] Hi,  I feel fine, but my chest is super tight.  My upper chest, almost where my neck meets my chest.  I dont cough much, but if I do nothing mucChatDoctores up and it kind of hurts to cough.  I researched it, maybe bronchitis or URI?  What do you think, and what should I do to treat it? [/INST] Thanks for your question on Chat Doctor. I can understand your concern. By your history and description, possibility of bronchitis is more likely. Bronchitis causes bronchospasm and this in turn causes chest tightness. 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. You may need inhaled bronchodilators (formoterol or albuterol) and inhaled corticosteroid (ICS) (budesonide or fluticasone). Quit smoking if you are smoker. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. </s>