Four days ago at work, a metal shelf bracket fell on my head and cut it open a little. I went to a doctor and was told I should be fine. Since then, I have been getting slight headaches on and off, and slight light headedness once or twice a day, as well as feeling tired. I have been sleeping well besides being anxious about the possibility of a concussion. This morning I feel as if my upper cheek/right below my eye area is falling asleep/going numb. There's sensation to it when I touch it, but it feels a little tingly. Any information would be greatly appreciated. Thank you in advance.