Hey guys im going through the same problem you guys are going through. It started when i was really young and I am now 18. Man it was real hard struggling with this through high school. It was hell. The skin gets white when wet. I'm also thinking the petroleums and moisturizers like that just make it worse. Whats bothering me more than my lips getting wet is that my lips after a couple days will crack/tear when it stretches.
The way i think it started with me was that when i was young I always breathed with my mouth. When my lips got dry I peeled it. since heeling skin isnt pretty especially when its on your lips I continued to do it.
I dont really think what we have is a disease. Im thinking when the skin gets wet it penetrates the skin making it loose. When skin peels on our body the area turns white when wet to does it not?
I may get to the bottom of this someday. My problem is that eventually my lips start tearing because it cant stretch. I will avoid petroleums for a while.