you litrally have the EXACT same condition as me. i used to bite my lips too. i even have the little bit in the middle where it goes up and then down again. really weird seeing it on someone else. Does your lips happen to go really red when eating? im not sure if its a seperate thing. anyway i tried the liquid bandage for a few days a there was a real improvment although i had to stop due to having to go out into public. if you ever have a week off, try the liquid bandage and see what happens