Hello. Welcome to hcm.
When you got hit,one of blood vessels ruptured in your nose and that is the cause of bleed. Also a fracture
should be ruled out. Black eye is collection of blood and it will go in a week or two.
I advice you to undergo a x ray
to rule out fracture. Dont blow your nose as blowing nose dislodges the clot formed to stop bleeding and may cause infection spreading to body. Visit a surgeon if bleeding is persistent so that he can pack your nose and stop bleeding. Apply ice packs for black eye.
All the best