My EE, Nutmeg, is in her first real molt and she seems abit aloof and off her food as well. She has always been a lively, almost roostery in behavior but now is just quiet, in the backround and just a little off. Her EE pal, Sugar, is off her molt and was the same way but her appetite is back with a vengence and she is running and fliting around Nutmeg.
I think it is normal, but a good idea to sneak in extra treats in general (especially protein), vitamins in the water and keep them free from drafts. A little TLC during their "special" time will carry them through.