thanks for the input, everybody. After giving it more thought, I think it's a nervous habit that I do to calm myself. I do think it gets self-injurious sometimes when I dig too much at my scalp, especially since it doesn't itch. But I don't think it's always self-injurious.

I appreciate you guys sharing your thoughts. And it's also good to know I'm not the only one who does it!

SweetCrusader

comfort the disturbed and disturb the comfortable