How come everyone else also wearing a mask did not have the same problem?
Stop...think..then open mouth.
I sent you a scientific peer reviewed study with objective proof that there is loss of oxygenation with a surgical mask even at rest after an hour, not occasionally but across the board, worse as participants passed age 30.
I sent you a second paper documenting widespread headaches & malaise from wearing masks reported during COVID.
There have been many reports of kids feeling SOB of young athletes dropping out during practice etc.
But you want to know why !everyone! isn’t affected the same way.
Hint, we are each unique biological organisms. We have differing tolerances for decreased oxygen saturation, different metabolic needs and consumption rates of oxygen. Some try harder & push themselves while others stop when winded. Beware of trying to shut out the truths that threaten your position.