I know what you mean. I used to do that too with my appearance. Had colored hair, piercings, dressed all in black. Like screaming look at me! But also wanting everyone to leave me alone. It was an odd paradox. Now when I am hypo I get that urge to do the same thing - dye my hair, get a piercing, get a tattoo. Usually we don't have enough money to do anything except the hair part so I'm safe on that.