Rooster is about a year old. since last Sunday he as had watery, runny eyes, he is very lethargic and will not eat or drink. He has been just standing in one spot not moving. He has very liquid white poop. I went to the feed supply store they gave me Terramycin soluable powder I have mixed it in water and am forcing feeding one syringe dose a day. He does not seem to be getting better so I have uped it to two doses a day. I have also began forcing pedia lite & water mixture. His eye area is really puffy on both sides of his head ...What is this ?