Suggest Treatment For Headache And Dizziness After Injury

I hid my head 6 days ago on the stairs really hard! and it hurted and then later my body was weak and tired and dizzy a little. Next day it was a little better but still weak and tired. I sleept the whole 2 days. I called my doctor, but he said don't bother come over here you are fine. but there have ben going 6 days now, and my head hurts. not that much like in the beginning, but it still hurts. is it normal ? or should I go to my doctor and say that he really should check it out? I don't wanna call if it's nothing.