Last night, I found a small, pea-sized lump on the inside of my left breast right at the edge of the breast by the breastbone. It is very hard, does not move, and is very tender to the touch. The skin on the top is not red, like for an infection. My breast has been kind of sore in that area for two or three weeks, but I never checked it before to see if it was a lump, but, for some strange reason, decided to look at it last night. That is when I noticed the lump and that the soreness is real strong right there. Any advice as I do not have any health insurance would be greatly appreciated.