For about a year now, I've had a small purple-ish looking bump on my lower lip. I noticed it after I was put on my meds for my anxiety. I say that because I did bite my lower lip a lot when I got super anxious, and I'm wondering if it's because of that? I just want to make sure it's nothing to worry about. There's no scabbing or bleeding or anything of that sort. It just hasn't gone away. I have a photo of the bump if needed.