I have a hen that seems to over night have a complete change in her personality and behavior. She is about 6 months old and has never laid an egg. But yesterday I went out to check on her since I noticed that she hadn't left the coop and she let me pick her up and just laid there, didnt make a fuss over me messing with her like she normally does. All she has done in the past 2 days is stay in the same spot and two of our other hens attacked her and normally that never happens either. We read that it could be brooding, but i was wondering if it could be somethin else?