Hi. I recently shaved my pubic hair and, as always, tweezed some hairs that were hard to shave off. As I pulled some hairs out, they had a clear sac-like thing attached to the hair that was underneath the skin. I've let the hair grow back in some, and if I tweeze out other hairs, some of them also have this clear stuff attached - always underneath the skin. I don't have any itching or a rash, but I'm wondering if this is something I should be worried about?