6 years ago I was hit in the forehead (top, right side) with a metal bar, I went to the emergency room and the doctor said that I had a mild concussion since then I have always had a lump on my head about the size of a quarter if not a bit bigger, i still experience headaches and lack of concentration since the accident occurred. The lump is not soft , it is pretty hard and I was wondering if it would ever go away, what was the reason behind it being there, and why i still have complications after 6 years.