I have a chick who has his eyes closed, hard/quick breathing, a clicking noise while breathing, and white watery poops. Before the white poop he had a light green poop with no white cap. He wont drink or eat and will open his eyes for a brief moment and close them again. He doesnt stand, he sits on his butt with his feet out in front of him. He lays down with his wings out to his side. He was a runt and is 3-4x smaller than the other chicks. He is almost 2 weeks old and 14 grams. I dont know what I should do. Im trying to make him as comfortable as I can with a heating pad and towels. Please help..