I've had this lump on my shin for about 6 months. It is sore to the touch but rarely ever hurts during runs. Sometimes its bigger and more sore than other times. I'm sure it's not a stress fracture as I have more than enough experience with that. I had some weird lumps on the inside of my knees in high school that turned out to be harmless. So does anybody know what it is, or if I should be worried?

it might be osgood slauger (spelling?). I've been having it the past few weeks and it sucks balls.