I am 72 yr. old female, with slightly asymmetrical face (more supporting bone structure and muscle on one side than the other). Asymmetry has become exacerbated by loss of volume in skin. I can handle that emotionally, (and I know flllers are available, if I want to go that route) but my bottom lip has shifted toward the side of less volume. I noticed that in pictures about six yr. ago, but not it is even more apparent. My bottom teeth could use some orthodontics, (again -- didn t wear my retainers when I was a kid). What caused this shifting in my bottome lip?