I have an almost two year old buff orp and something is wrong with her. I gave the girls fresh water( they were almost out),and a treat of cracked corn. All the other chickens went for the corn. She went for the water and drank forever. Then she walked back out in the pen in slow motion. She has just been standing in a daze. I checked her over but can't find anything apparent except her belly felt distended a bit. I felt down the breast bone for eggbound but I'm not an expert. Her comb in bright red, almost purple and she's kindof fluffed up. Any ideas? I've lost two in the past suddenly. Both spaced out from each other. I don't know what to do. Help!