well last Sunday I hit a tree head on while dirt bike riding I was traveling about 10-15mph I was able to take a 2min breather and check myself out and continued riding for about 1.5hrs with no problems . well anyway all the parts of me that hit the tree are now normal but sternum still hurt when try to get up from a laying on my back like a sit up almost i can get up on my own but it really painful . I can breath fine and doesn't hurt to walk. I have a hard time sleeping at night and starts to hurt when I lay on my side so I toss and trun all night in pain. my whole sternum doesn't hurt just in the middle, the top and bottom feel fine. but my rib also hurt and the same area. so what could it be fracture ribs or sternum ??