Too young to break bones , where the 'Blankety blank" , have these super educated bleeders been. Back in the forties, One 11 year old with me in the casualty ward had 21 fractures falling off a ladder [ 6 feet] [calcium deficient], I had by the time I was 18 had a broken tibia , smashed ankle [all the bones pushed in a lumped]and also with me were many other young men hanging from the ceiling on wires while have their extremities supported while healing, later two collar bones split, a nose that was adjusted for beauty . all were just normal accidents. No bones broken by the young, Yuck, yet my wife who has done her 3 score and ten + took a tumble down 3 flights of stairs at an airport, all recorded on tape , just got a "******" scare both of us most thankful. Chests Pain problems should always be investigated, Autopsies have shown many a person has had problems , shown by the lesions on the heart that they survived, It is a muscle and can from stress seize up just like a charley horse. unlike a charley horse it can stop oxygenated blood getting to brain. Tis why the good guys have means to evaluate the condition on the spot rather than wait for evaluation.