Yes as Karen said DO file the incident report and file for workers comp. You never know what kind of reprocussions (sp?) this injury could have even years down the road. You wouldn't want to be stuck being unable to work, or having to pay later for something that happened now.

BTW I can sort of empathize with you, today I went to get a carrier out of the basement, and in the process disloacated my ribs. Most excruciating pain I've ever had.