Question 1- "do all of your lips peel and brake open slightly while peeling or do they just peel and not brake open"
Yes, normally mine break open into smaller bits when they peel. If I leave them alone completely(not touching, picking, licking, etc.) for a couple of days then the skin will come off in sheets.
Question 2- "Also, it it dificult for you to smile the top lip because it is not so elastic like."
I would say that its more my bottom lip that is not elastic, it will split if I smile too hard or open my mouth too wide ,but that is only when I dont wear lip balm and leave them alone completely for a couple of days.
Question-3 "When you smile does it turn whitish like there is a dead layer of skin in the lip."
Yes, when I smile or open my mouth there is a ring of white dead skin on both upper and lower lip.(from saliva wetting the dead skin and turning it white) I am usually self conscious about this and remove the white skin with my teeth and tongue regulary when I feel it has built up.