Okay so maybe about three weeks ago i took home five baby chicks that were hatched in my biology class.One of them being a smaller one whose egg sac(or at least that's what I was told it was) grew on the outside of her body and dangled. It has then fell off and she appeared to be fine. She doesn't grow as fast as the rest, in fact, she's only grown a little from when she first hatched. Yesterday when I went to check on them and they all got up but her. When i picked her up i noticed she had difficutly standing and walking. She slipped while walking a great deal. *Side note she wasn't like this the day before* Today she can't walk, stand, anything.Anytime i try to sit her up she falls over. Earlier she would drink two sips of water and eat a nice amount of food, now she won't do either. I'm very concerned for her all she has been doing is sleeping. I don't think it's spraddle leg, I don't know what elseis there, this all happened so sudden.