khorven I checked your history and I wanted to comment on your post about exercising (and regarding about the sun as well).
I got my EC while I was going to the gym everyday, and I go to the gym by walking which takes a total of an hour to and from the gym. That also is not the only time I'm under the sun, I play(ed) football and jogged a lot. I have no idea if drinking protein shakes caused my lips to peel but my diet was definitely healthy.
This just proves that I'm kind of an outlier, and the only non-outlier factor that I can contribute is that I used to lick, peel and pick at my lips and I used to get chapped and dry lips from time to time. I guess everyone here is also an outlier in one way or another, because this condition is truly mysterious.