Oops, it doesn't look like 'bronchitis day' is a national day..

Other days

hiv awareness

Hiv Awareness Day
boy friend

Boy Friend Day
brow

Brow Day
hannah

Hannah Day
slime

Slime Day
lisp

Lisp Day
ormille

Ormille Day
buddy

Buddy Day
eat what you want

Eat What You Want Day
tulip

Tulip Day