I used to have a BEL and I would often notice light pink areas on him quite often. They weren't burns and it wasn't from going into shed. I think they were just visible because he was pure white. If he was balled up in his hide and you pulled him out you could see them where his skin was folded over. I see the same thing from time to time in the white areas of my Lesserbees...

I have no idea about the loud noises...