Hi, I am Dr Mbong,
After the accident you had during spots,you you may have sprained your nose bones (cartilage
) or broke them especially given the pain and headaches
you feel. The headaches and sleepiness may even signal some other deeply rooted complication.
So it is advisable you go to the ER, see a physician and do an X-ray. It may just be soft tissue
(skin & muscle) pain from the trauma but it is prudent to see a physician earlier enough and have appropriate and timely treatment.
Wish you quick recovery and all the best. :-)