yep my ds (youngest ) is exactly the same falls n etc not a tear but u yell at him n he crumbles lol
he had hearing probs also very young n was just as clumsy he would actually fall back n smash his head face anything..
he fell once n his arm n elbow came out of there sockets i didnt know he was just walking around carrying it n when he went to get his 18 mth needles the dr was shocked..
i think from all that falling when htey where younger they build up a high tolerance.. no idea