Years later, you get the flu but power through work anyway, rather than miss time. Then, a co-worker catches it and takes three sick days. You roll your eyes and call him a p***y, automatically assuming that the two of you were feeling exactly the same symptoms, but that one of you was tougher.
The obvious thing you'll be missing is that suffering is just as subjective as music. Hell, science even says that redheads tend to feel more pain than everyone else, due to a genetic quirk. It appears that it's the same for women, due to how pain signals are relayed to the female brain. Meanwhile, people from colder parts of the world literally stop feeling the cold the way the rest of us do. Some people almost never feel fear -- not due to courage, but due to a failure of certain connections in the brain (they're called psychopaths). All of the sensations that motivate us to pursue some actions and avoid others actually feel completely different from person to person.
She can snow angel for hours on end, but needs an ER trip
and three months of rehab after a snowball fight.