This is my 10 month old Welsummer. Today she started moving very slowly and her vent is swollen. I gave her a warm bath and cleaned off a lot of poop. She is separated from the rest of the flock and under a heat lamp. She seems to be pushing quite a bit. The bumps around the vent have me worried. Any idea what's going on? Her vent is upside down in this picture. I had her laying on my lap. Not sure if that matters for a diagnosis.