So, excuse me for asking this kind of question. I know it's a long shot... and probably irrelevant for most of you.
Sometimes when I walk or jump I can hear and feel some kind of cracking in my head, right below the skull (precise location varies). It is not painful or uncomfortable, but it is disturbing and -I'm pretty sure- not normal. My doctor says he has 'never seen a patient who had anything of the sort'. I tried googling (as you do), but nothing useful came up.
I was just wondering if anyone here has experienced the same.