Ok, so I have a hen a little over a year old. The other day I noticed her comb was a little dark and drooping, she also seemed a little less active than usual (she's our bully). The next day she seemed fine. However for about two weeks, she quit going up on the perch to roost and started sleeping in a corner. I would put her up and in the morning she was down but seemed to have a hard time flying down and wouldn't jump down like the rest. Eventually she stopped going up or down and I thought maybe she had hurt a leg or something. Well then yesterday she barely left the coop and today I found her just sitting inside the door to the coop and when offered a treat she went to run and fell down. I checked her out and see no injuries but she is very week, and wobbly and when I picked her up she was all bones. Not sure whats going on but she never lets me pick her up. She seems to be having a bit of trouble breathing as the sound she makes almost sounds guttural. I took her in and soaked her in a nice warm bath for about a half hour and put her in a separate pen with a heat lamp. I made her nice treat of oyster shells, raisins, scratch and feed and I fixed her some water with apple cider vineger and electrolytes. Any other suggestions, I don't want to lose her but have no idea whats wrong.