As always, thanks Mark.

How do you differentiate between immediate concussion symptoms like confusion, dizzyness etc. and the surprise/chok from hitting ones head? I mean, I dont recall confusion etc., but I was also panicking because I new I just hit my head, so maybe I just cant remember because I was panicking?

And is it possible at all to have a concussion without more than very minor pain?

Here in Norway it says everywere not to drive after a hit to the head, but it doesnt say that its beacuse of traffic safety and only apply to very hard hits. I concluded it was because it would make a injury worse so thanks for explaining.

Best regards