Could arm, shoulder, and slight neck pain be caused from a hit to the back of my head? I hit the bottom back of my head fairly hard roughly nine days ago. I had symptoms of lack of focus, headaches, anxiety.. Have started to feel pain go through my arm- a weird tingle tired pain mostly forearm and tricep and shoulder soreness.. gets worse at night. Bottom of head hurts, not exactly the neck but the neck is a little tight.. I am 20 year old female in good health condition.. Had one other concussion two years ago.. not sure if this was a concussion but had similar symptoms. Most of this pain is in the right shoulder; it is extremely tight. I can feel the left shoulder getting slightly tighter.