Sharp pain since hitting my head?

[Program]

I hit my head 2-3 weeks ago pretty hard. Now I'm having a sharp pain in the right rear side of my brain when I move my head forward and stop abruptly. So for instance, when I get up from laying down quickly, it'll hurt pretty bad for a second.

Is this a concussion symptom?
What should I do about it?

 

[S]

Hey mate, wrong section.

Unless you're feeling scammed due to this pain.

Post another thread in the correct section.