<s>[INST] I am having this problem for about 5 minutes now. It is driving me crazy. Everytime I breathe. My left chest (seems like its around my nipple) hurts. Everytime I inhale deep and exhale deep out too. I tried burping but nothing works. Im also very warm. Please help [/INST] Thanks for your question on Chat Doctor. I can understand your concern. Left sided chest discomfort should be first evaluated for cardiac diseases. So get done ECG and 2d echo. If all these are normal than get done chest x-ray to rule out lung infection. Lung infection causes pleurisy (inflammation of pleura). Pleurisy can cause chest pain on coughing and deep breathing. You are also having fever (warm feeling). So possibility of lung Infection is also high in your case. So get done chest x-ray to rule out lung infection. Hope I have solved your query. Wish you good health. Thanks. </s>