Oops, it doesn't look like 'i scream in pain day' is a national day..

Other days

bounce

Bounce Day
hannah

Hannah Day
blanket fort

Blanket Fort Day
bow tie

Bow Tie Day
ormille

Ormille Day
buddy

Buddy Day
prosecco

Prosecco Day
camera

Camera Day
youth

Youth Day
hiv awareness

Hiv Awareness Day