Barefoot running stress fracture?

So you are having bone pain? Kind of hard to believe for the bones don't have pain sensors in them. When there is a fracture or a break it's the muscles around those things that get the pain from being moved out of their normal place. If you have a fracture you aren't supposed to be able to see what is moving to give you pain? I've seen a lot of tight tendons that dr.'s can't find on scans giving pains they they just plain missed because of that. Blaming pain on something that doesn't even feel pain seems pretty lame.