I got twenty cornish x chicks on Friday. since then I have lost 14. They go down, and some of them swing their heads way back, others nod their heads around. Sometimes they will shoot a wing or a leg out, which causes them to tip over, and they can't get back up by themselves. Some of them die quickly (I find them dead before noticing any symptoms), and some last twelve hours or more with these symptoms. When I notice one having trouble I have been isolating it and wrapping it in a paper towel to stabilize it and help keep it upright. I put them near a waterer, but they do not seem motivated to drink on their own. If I dip their beaks they might drink a little. Thanks in advance for your help. I have been raising meat birds for about five years now but have never had losses like this.