My first hatched chick (June 7) is sitting slot, hides from the other chicks, is now smaller, very watery poop at times...I just feel like there is something wrong with her. She seems to eat and drink. Anyone have any thoughts/advice? The other chicks are so active and run all over but, not her. I have put a very little bit of vinegar (Braggs) in her water and she has chick feed.