I came back from setting some eggs in the incubator and when I went to do the evening move/feed noticed one of my meat birds didn’t move to the new grass, wouldn’t stand or go for the feed. I’ve moved her inside her comb is purplish she is panting and has a swollen abdomen right near her vent. I gave her a warm bum wash and soaked her for about ten minutes, she’s not pooping properly and having a really hard time breathing. She is 6 weeks old and a red ranger. I don’t think she will make it through the night. I did get her to drink a little water but now she’s refusing everything. Any suggestions/advice? Does anyone know what could be causing this.