Oow dear,

four weeks ago i bumped my head and it triggered an old concussion I had 10 years ago.
Now my head starts to pound every time there's pressure on it. This causing me not to get any sleep. It doesnt matter if i lay on my back, left or right side. From all angles after couple minutes my head starts to hurt soon as there is contact. (feeling that somebody is slamming with a hammer on it, the pain feels deep inside my head) i have no clue what to do anymore, is there anybody who experienced this or knows what to do?