HELP. Tail down, acts sick, comb purple

[Knelvin]

My 9 month Orpington has acted sick all day. Not doing much, went into the nesting box but no egg. Sitting on the roost fluffed up facing wall. I checked her crop and didn’t feel any egg or impaction. No change in poop that I can tell. Not sure what to do. It was cold yesterday, snow and 50mph gusts but their coop is draft free and everyone else is fine. Her comb is kind of purple.

 

[Wyorp Rock]

Did you feel inside her vent for an egg?

If she's not drinking or eating, it would be good to see if she will at least drink some water for you. Feel her abdomen for swelling or bloat. Check her crop first thing in the morning to make sure it's empty.