Hi,Thanks for query,
As 24 hours are passed,it seems that there is no injury
to the brain. If you do not have any problem like dizziness
or any brain related complain,you do not worry.
It is possible that you might got some local injury on the nose giving you bleeding.
It is better to consult your doctor and get examined,locally and examination of CNS.
There may be fracture
of small nasal bones or some wound in the nose.
Ok and bye.