<s>[INST] Ive been having sharp pain on my left breast near my armpit. I 1st experienced it this afternoon and it was difficult for me to breath normally. I took shallow breaths until I was able to get in some good breaths. The pain started again about 30 minutes ago. Now it hurts when I try to take a deep breath. [/INST] Hello dear, welcome to Chat Doctor.come have gone through your concern in depth.* There are various reasons for this pain as - Costco Chat Doctor. * For precise management this requires proper diagnosis to find out the cause with the aid of x-ray with or without CT scan.* Primary relief with analgesic as ibuprofen (400) mg 3 times a day after meals. Hope this will help you for sure. Regards dear take care. </s>