Yes I pushed down on the ball in back of my head maybe between the two because it field so tight I then bent back and my skull cracked big time 6 months ago.. I feel a lot of pressure tight pressure I have a headache that won't go away.. When I lay down for bed there is sounds like when you tap on a wine glass the sound of that runs all night long in my head/ears Who should I go see about this what kina Doctor a neurologist.??? HELP