Bare with me here, but I woke up to a chicken that is huddled in the corner of the coop, her vent is bright red and very swollen and she is leaking a white runny poop consistently and she also has a gooey thick translucent red substance leaking from her back side area. 6 days ago I checked this chicken for mites (which she didn't have) and so I saw her vent clearly and it was perfectly normal, a little moist, but I expected an egg out of her very soon. To my knowledge she hasn't laid yet. Please help me, I've never had chickens before and these are only 21 weeks old...