i've had 3 concussions before. they are the most painful thing i've ever felt. my head has hurt so much that all i could do was roll around on the ground clutching my head and groaning. so if you didn't feel anything when you had one, you obviously didn't have one.
hellow my name is Dr Brown phd. and I have a freind who has gotten many 'concussions' and he claims that they are not bad. I on the other hand have had one concussion and every time the blood pumped though my brain it felt like someone was pricking my brain with a needle. So if you are a faggot pussy you will understand that cuncussions dont hurt while on the other hand, if you are a normal pain induring person you will know that cuncussions are fucking rediculously painful. Moral of the story is dont claim you have had a concussion until you really have had one...