For a while now I have had pain on and off in the ball of my foot, which I suspected may have been due to a sharp piece of tile getting lodged in there. However, I have had no pains for the last few months, so I assumed the problem had gone away. I've been doing some fitness training lately, and noticed no problems, until this morning. Every time I stepped down I got a sharp pain, and ended up limping. Is it worth seeing the doctor about this, or will it sort itself out?