So almost a week ago, I got a baby golden sex link, she seemed healthy on the way home and I'm still not sure if she is, she seems happy, and playful with my 6 other chicks, but she does this thing with her head, she twitches it like every 10ish seconds at first we thought it was just some little thing she'd grow out of, and it might be. But I've started noticing that, one of my aracaunas, Ari has started somewhat doing it! Not quite as bad but she is my favorite chick and I would never want anything to happen to her! She never really did it before now and I'm kind of worried! Can you tell me if this is some disease? Or maybe mites? Thanks so much for all your help!