If your symptoms have recently worsened a lot, sometimes this can happen if a person who has a
concussion already, then they somehow bang their
head again and then symptoms can worsen. I hope your symptoms are not related to hitting your head, rather perhaps you've got something else less serious wrong, but it just seems to me if you've had headaches ever since your fall, and plus you feel sleepy a lot, a doc has got to check you out!