What Causes Bloody Mucous After Hitting The Head?

I got hit in the forehead from a softball that bounced in front of me and then hit my forehead. the ball hit where I would assume there are sinus pockets. it hit right above my eye. I woke up the next morning and cleared my throat only to see a dark mucus string come out. upon closer examination it is blood. Can it be from my sinus bleeding? I don t have a broken nose...nor do I feel faint dizzy or sick like I did with my other concussion. Wait it out or go see someone?