I had a really nice chest workout yesterday, super intense, really pushed myself. Today I noticed my left pec was much more sore, hurt when flexed. There is a small knot, bigger than a pea, only thing I can think of is raisin size, yet longer, not round. Hurts like a bitch, the slightest touch is painful. It is located outer upper pec, near armpit. Maybe it's not related to workout, but I can't,imagine what else would cause it. Wtf is it, blood vessel?
