Yesterday I noticed a few pieces of hair poking upwards, I think the ends of the hair may have broken off but there were only a few. I got 3 of these shorter hairs in between my fingers and they just came out without me even pulling on them! This scared me, so I lightly tugged on a few different strands of hair and they seemed fine, they didn't pull out at all and seemed strongly stuck in my head! What could this be?