I have a white line on my lower lip, it's almost under my lip. You can't really tell it's there unless I stretch the lip out. Without doing that, it just looks like there is a tiny crease in my lip. I don't know if I've always had this and am just noticing it now, or if it is something new. I gave a guy oral about two weeks ago, so I'm not sure if it has something to do with that. I'm pretty worried though.