I have a hen that is about 14 months old and drinks alot of water and when she poops it is mainly clear water with some green mush mixed with it. I need help to figure out what it is? I have given here Sulmet in her water for two days so far per feed store advice and nothing has changed. She does not act sick and this has been going on for about two weeks. She is also laying, so no problem with that. Help please!