Hi there. I'm new to chickens and have a black sex-link hen (around 14 mos?) who's acting sick. I got her about three weeks ago and she's yet to lay. She has seemed otherwise okay, but today when I got home she was sort of limping around the run, favoring her right leg, having a lot of *very* loose and discolored stools, and doing the weird eye squint and neck crane. I've separated her from my other three hens, who all appear to be just fine (one is also 14 mos and regularly lays, the others are 22 weeks and haven't yet started). She's sometimes sitting, sometimes limp/standing but drinking and eating. Any backyard diagnosis? Hoping to avoid a trip to the emergency vet.