I have a black tailed white JB that is 3 weeks old today and within the past few days it has started acting weird. It isolates itself some from the other chicks, it just stands or sits there in the corner, sometimes with it's eyes closed and it doesn't seem that interested in food although I have seen it eat a little. They are on medicated food and I have some Terramycin that I just put in the water hoping that would help. Does any have and suggestions. Should I separate this chick from my other 5. I didn't realize these chicks were so hard to raise.