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

Other days

ask out your crush

Ask Out Your Crush Day
artists

Artists Day
china

China Day
lisp

Lisp Day
ormille

Ormille Day
lash

Lash Day
coffee

Coffee Day
self care

Self Care Day
offer

Offer Day
ponytail

Ponytail Day