I will never understand what humans have against weirdness. They think it's embarrassing, they try to cover it up, they want to cure it--but who said it was a disease?
You ought to embrace your personal brand of weirdness, and flaunt it. Being different and standing out are things you should be proud you have the power to do. Naturally, people are going to shoot you funny looks and maybe even laugh, but it's nothing against you. They're not used to such unabashed behavior, and honestly, they're probably jealous because they'd love to have the courage to wear pom pom tights and sing to the birds in public.
Take off your medical mask and sneeze out your weirdness. It deserves to be witnessed, and you have every right to love it and use it out loud.