I actually really dislike wearing a mask and sometimes have a mild panicky feeling of suffocating and have to move to a window. (I get a similar thing snorkeling).
But it's no big deal. I'm a grown up and I deal with it because it's a good thing to do for other people. I understand some people might have really strong psychological reactions and that's why we have mask exemptions.
But I don't think that applies to the majority of the people that are claiming wearing a mask is a massive problem for them. I really don't.