I have a strong suspission that I may have a fracture at about L1 area...that s as close I can guess.. pain is specific to the one bone. I m sure it would be from seated leg press. I have a tendency to lean forward and bear down pushing heavy weight. Weight excess of 700#. Makes sense for a small woman that that much weight alone would be issue...after the pain began I just folded towels under my back. This us when I had aha moment....can that particular exercise cause injury that location , but mostly....is it necessary to go to Dr....as it seems rest is what seems to be majority of treatment. I have lupus and pain medicine in general, though at the moment it isn t helping this lol.