Sometimes your brain gets a bit distressed and it cases you pain
It doesnt hurt
hyperextension
You could have a concussion if you've fallen and the back of your head starts to hurt. You need to see a doctor right away under this situation. The back of your head could hurt due to a recent fall and the on set of a concussion. If you've fallen recently it's best to see a doctor.
Sex
he hurt his head at wrestlemania 25 he will always come back.........
Sneezing. look it up....
Go to a doctor
This sounds like it could be lymph nodes and should be checked by a doctor.
Many things from Acne to rubbing of a wetsuit
Yes
A crackling noise when you turn your head or press on the back of the neck - like rice krispies - is called Crepitus.
Because any pulling in the hair causes tension ,therefore causing your head to be sore or painful