I have a 2 year old New Hampshire that is lethargic and not interested in eating. Laying down a lot, and her comb and waddles are almost colorless, very light flesh colored instead of pink or red. I saw her poop a little bright yellow very loose stool. I went to pick her up and she didn't even budge. Should I remove her from the rest of the flock? She is the only one that looks like that out of about 40+ hens..