My sister noticed one of our 2 week old chicks having problems this evening. It seems to be shivering(not cold) and unstable on its legs, holding its wings out a bit from sides. the other chick is acting just fine and Momma bird as well. I bought Electrolites and Probiotics to add to water on my way home from work. Mixed some up, gave to this chick with a dropper plus put a waterer full in coop along with plain water. Have never had a problem with any chicks in the past, these were hatched here and were just put out with momma last week. we keep them in a seperate coop until they get big enough not to get eaten by the cats. Does this sound like a good start ?? And is there anything else I should or could be doing ?? Also, they are getting Chick Starter feed.