Hairy. i'm nineteen, and i'm also having pain in my left breast (a lump is under my left armpit). what should i do?

The whole breast?: Is it the whole left breast or just one area? Is the armpit lump painful? Infection or inflamation can cause pain in yor breast and give you inflamed lymph nodes under your arm? Most things in a 19y/o breast will be benign. But you should see an md (gyne//surgeon/fp ) for an exam and possibly an us. If this is an infection you want to treat it sooner than later.