question: So my name is Kat and I m 18 and about a year ago I noticed a lump of some kind under my chin near my neck. It doesn t hurt but I can pop it in and out and sometimes it feels funny if I leave it alone. I m concerned because I m having it again. It never went away, it just stopped popping out as much. I asked my doctor but she didn t really pay attention to it and said it was nothing. I don t feel like it s nothing. Any advice?