Hello.
Never really used to worry about anything health related (except bad paper cuts) but recently I've become paranoid and sensitive to pretty much everything.
Recently I've been obsessing over what I guess would best be described as a small valley running roughly from the crown of my head to a few inches down the back of my head. If I run my finger from ear to ear, when I get to the top of my head, it feels like it drops off a little cliff, down into a small valley, back up a little cliff on the other side. The valley feels fairly hard, pretty shallow and about 1cm wide
I know it's most likely natural and this could have been there forever but any reassurances would be appreciated.
Thanks!