I am 24 years student. From approx 15-20 days I am feeling pricking pain in left breast . The pain occurs sometimes for about 2 or 3 days in a week for a very small span of time. I had examined my breasts there is no lumps, no shape change, no disformity in breasts nothing. I am just feeling this sharp pricking poking pain in my left breasts with no other symptoms. Please do help me out.