Hardly an excuse!
I’m sorry but it is being used as one, I get it you can’t wear a mask, you don’t feel comfortable fine then don’t go to places that you need to wear one.
This constant “I’m exempt” is exactly the behaviour that others have jumped on not to wear one, to me it’s simple don’t go out if you don’t feel you can comply.
Others are sacrificing for the greater good, perhaps some have to look at themselves and think if it’s for the greater good that the rules are made simple.
“No mask, no shop, no exceptions“ so simple.