To know if you have a concussion you can go to the doctor. One way I was told to know is that after you hit your head, someone needs to check your eyes. If your eyes look weird that is one sign. Another thing is after you hit your head, about 3 to six hours later you might vomit. My best advice is if you think you have one go to the doctor or the hospital.
he broke his neck with a slippery car accident
not that i no of
He broke his neck twice
u wont move it and u cant breath good and when u try st reaching Ur neck it will hurt
Isadora Duncan?
Owen Hart
kurt angle 2003
Nick Skelton
he jumped off a ladder and broke his neck
Evan Zadik
He broke his neck and he retired
Yes he is. He fell out of a window and broke his neck