My young EE hen, Feather, started laying about 6 weeks ago and is now about 25 weeks. She has pretty consistently laid about 5 eggs a week since she started. She seems healthy - she is perky and eating and drinking. BUT - she has not laid an egg since Sunday morning. It is now Wednesday night. My other two laying hens have continued to lay regularly. I checked her for egg binding, and while she didn't seem egg bound, I gave her a warm bath, greased up her vent, and kept her inside for a few hours. She is fed a high quality, organic layer feed. I use DE in the run and coop to prevent mites and lice. They only have supervised free ranging once in awhile, so she isn't hiding her eggs. I don't think anyone (or thing) is eating the eggs as there is no evidence of it and the other girls eggs are not disappearing. I am a total newbie. this is my first year with chickens. Should I be concerned, or is she just taking a vacation?