<s>[INST] 1 month ago, I had a sharp pain in my upper left arm, which lasted for 4 days. Today again I m feeling some pain in my left upper arm with some back pain towards the left side and also between the blades of my shoulder. I usually have some pain on the left side of my chest or in the center of my chest. From the last 3-4 days I am having nose bleeding too ( not that regular way where bleeding is continuous, but whenever I blow my nose, blood clots come from there. This happens mostly in the morning when I wake up)... I don t know what to do. [/INST] Thanks for your question on Chat Doctor. I can understand your concern. Chest pain are commonly seen in cardiac cause and lung infection. Get a chest x-ray and ECG done. If your chest x-ray is normal, no need to worry about lung infection. Possibility that you might be having hypertension as well as it may cause nose bleeds. So kindly consult a doctor for the same. Hope I have solved your query. Wish you good health. Thanks. </s>