Over the last two days my lips have dried right out. I don't know why as nothing has really changed, -except I've increased my protein intake a bit and doubled my Glutamine intake from 5g to 10g but otherwise most things have stayed the same.

I don't like using chapstick as I believe the body gets dependent on such things and my lips rarely chap, especially to this degree. The only possibility outside of diet I can think of is sun but I don't remember being out in the sun where that could happen and my nose isn't burned.

Any ideas?