I have a year old hen who was doing fine the day before, but yesterday I found her hiding under the deck and would not come out for treat and would not stay with her sisters. After finally getting her out I noticed her head was very pale and she was slow in her movement. I put her in the hen house and made sure heat lamps were on. This morning she is doing better but still pale around eyes, comb and waddles looking better in color. I mixed up some oats, applesauce, honey, yogurt and egg yoke but she won't eat much. I did force her some last night but none today. She is looking better but still not a 100%. Any other suggestions?