My RIR hen is sick. Symptoms are lethargic like. I had to make her get out of the coop to go get water. Now that she is out she is staying in one spot. One side of her head looks different than the other. The waddle is turning dark, and the eye area is swelled. She doesn't appear to be eating but is drinking. It seems to have started yesterday. I really don't know what to do. She laid yesterday and the day before. What do I need to do? I'm going to post a picture as soon as my email connects.