I'm having recurrent pain on the top of my left foot just below my 2nd & 3rd toes; sometimes the corresponding area on the ball of my foot also hurts. The pain is incredibly sharp and lasts for a few days. After the first day of pain, I've noticed that the outer side of my 2nd toe is completely bruised (it almost looks as if someone's drawn a line with a purple marker on the side of my toe). Naturally, I am unable to wear anything other than sneakers during these occurrences. I am having a difficult time figuruing out what is wrong and how to fix this problem.