I found today that a few of my 8-10 week old chicks have watery pink swollen eye lids and ones eye is swollen shut. Also a couple chicks i picked up had water coming out of their mouths. they had just drank alot so im nof sure if thus has anything to do with their eyes. I just brought some chicks home from another person and added to my chicks. One of the chicks I brought home died. He was sneezing and lathargic before he died. What could this be and how do I cure this????