I have a 3 year old Rhode Island Red chicken. She has very runny/watery poops and her butt is a mess because of it. Vent does not look red or seem swollen. Belly is hard. Have had her quarantined for several days, and she is eating and drinking normally. I can't find anything that seems to fit, and am wondering if anyone here has ideas. I originally thought an issue with eggs, as she isn't laying, but don't think she'd still be alive if that was the case. Vent gleet doesn't seem right, either. Now I'm thinking parasites, but we're in Michigan and it seems early for a heavy load. Her comb isn't really pale, so I'm not sure what to think. Any insight or tips is appreciated! I need her on the mend and out of my barn.