The following list is not exhaustive, just a collection of some of the factors that make mask wearing, especially forced masking, so distressing to many people.

A few important things to keep in mind:

  1. Not every listed issue is true for every person who finds masks distressing.
  2. Each issue amplifies the other ones, so that the cumulative distress is far greater than the sum of its parts. It’s like the difference between 1+2+3+…10 and 1x2x3x…10 (55 vs 3,628,800).
  3. This list is not exhaustive.
  4. The short explanations are intended to give a bit more insight into how people might typically experience that particular stress. They are not intended to comprehensively define the issue.

https://brownstone.org/articles/facemasks-are-not-a-mere-inconvenience/