Is it normal to rub the skin for dirt?
I like to rub certain parts of my body(not in a sexual way)like the area new the armpit,area near the wrists,neck,chest legs etc and build the amount of black thing that comes from rubbing and keep it for sometime in the hand and fiddle with it.It feels so strange and good,kinda like OCD maybe?
So am I the only person to do this?