skull degorm

hi i am 21 years old and i feel like my skull is a little deformed because of an incident that occured when i was 13. a garage shut on my head and was putting pressure on the back my head all the way to my forehead. my parents said it didnt do anything to me but is it possible. and if so how do i find out what damage was done and how do i fix it. i remember the incident like it was yesterday it never ever bothered me until recently while i was feeling the back of my head and wondering if it was a little normal because on the left side is wider than the right. and the back of my head is flat and uneven. is this normal. and do u think a garge being slowly compressed can cause damage without me even relizing it? some please help ease my mind.