Vex developed some new white scales on top of her head after her last sheading. Ive never seen this happen before, and Im a little confused to what it means. She seems fine, normal behaviour and shes still eating. Ive checked her temps and humid, thats all normal. What does this mean?

Case

http://img139.imageshack.us/my.php?image=vexswhiteyy3.jpg