mountaineering accident, fall of over 500meters, tumbling and rolling on rocks at the end, happened end of July, several radiographs taken at the time and no broken bones, everything has healed, bruises, hematomas, contusions,etc... but on my left shin that had a small lump at the time of the fall, there now appears to be a mass that seems solid with the shinbone, no discoloration and painful at times after a walk or bike ride or standing for a long time!!! Should I see a doctor or will it disappear?P.S. the mass is as large as a half a grapefruit.