The muscle problems come from upper neck injuries where C-1 and C-2 have been traumatically caused to get out of position. Any traumatic force against the skull will have an effect on the neck. When the upper neck is injured, it become inflamed and the muscles can spasm causing head aches, etc.

Galaxy, I wonder if you have any upper neck injury because the mechanism of your injury, slamming your head against a concrete wall in anger, does not appear to have force against your head than could cause an upper neck injury. There would not have been a whiplash like force effecting your neck unless you were throwing your body against the wall. Just wondering ????