I got in a car accident three weeks ago (I flipped my truck) but I thought I just hit my head on my arm when I raised them but I have been getting sever headaches almost every day there getting worse , I feel dizzy , can't constrate at school or talking to friends , an sometimes i see like stares in my eyes an It hurts in the front of my head ,an aces in the back of my neck ... Could this be just a headache ?