Yesterday I came home and when I checked on our baby chicks, I noticed that our light brahma chick was swaying from size to size when she was standing and when she walked. Even when she sits her head moves from side to side. I got them fresh food and water and she tried to eat and drink but had trouble finding where to drink the water. She knew where it was, but it seemed like she was dizzy because she couldn't get her beak into the water to drink until I helped her. She still eats and drinks but I don't know what could be wrong all of the sudden. Yesterday morning she was completely fine, running around with the others chicks. What could be wrong?