Hi, I have 2 Isa Brown cross breed hens which are almost 3 years old. Both hens have been off the lay for several weeks. One day last week both were looking a little under the weather so I wormed them. I have never seen or had any issues with lice/mites. One hen has been fine since but the other one who has also had a poopy bum for the last week or so is being particularly slow/lethargic. Today she has been crouching & closing her eyes (my fiancé thinks she is trying to poop but can't). She did not move at all when we caught her & cleaned/cut off the poop. Her vent appeared to be okay. Her crown has also gotten a little floppy the last week or 2, not sure if that means anything. Any additional checks or what I can do to help would be appreciated.