Help! My 6 year old hen is sick and not sure what to do: She's listless, has a very poopy butt, has lost a lot of weight, and was cocking her neck oddly when I went to check on her today. When I picked her up, she "threw up" a bunch of water. I just gave her a dose of safe guard and put them all on a cocci regime with Corid in the water - but other thoughts??