Reason for Concern

So, I have a few new bruises that have origins unknown to me.  Perhaps they have surfaced from a bump into the kitchen table, or a turn at my desk in my twisty chair.  I am the type of person that should not be allowed to have a twisty chair.  Inevitably I spin my knees into the corners at my desk, or I get bored and just spin around and around.  Anywho - I have bruises that are normal, for me at least, and leave no cause for alarm.  However, I am concerned about my shin from the infamous tumble.  Is it possible to bruise a bone?  The yellow, jaundice looking bruise has finally disappeared, but there is still a sharp pain in my shin if I apply too much pressure when stepping down.  I'm now torn between having it checked out, or just waiting it out.  I'm on my feet a lot at job #2, and it seems to be fairing fairly well, if you will....