I am 33 yrs old and was born with this. My bottom lip pulls down in left corner when I smile or talk. You can't notice it if I am not moving my mouth. I have been teased my entire life about it & some joke saying she looks like a stroke got her and that's not funny. Please help I will do anything to fix it.I don't even look at people when I talk to them I look down to the ground so they won't see it and ask what happened. What can be done?