hello welcome to health care magic
The symptoms of a head injury
can occur right away, or develop slowly over several hours or days.
did u becomes very drowsy, Behaves abnormally,Develops a severe headache
or stiff neck
,Loses consciousness, even briefly,Vomits more than once soon after ur injury if so u need to immediately consult near by doctor.if no such symptoms only headache is persisting u need to consult doctor
to rule out if any brain/head injury is present.