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

Other days

me

Me Day
stress awareness

Stress Awareness Day
azonto is acceptable

Azonto Is Acceptable Day
hiv awareness

Hiv Awareness Day
hannah

Hannah Day
camera

Camera Day
bow tie

Bow Tie Day
appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day
boy friend

Boy Friend Day
self appreciation

Self Appreciation Day