I need help.... one of our chickens has something wrong with her and I’ve looked on all kinds of blogs and asked the feed store for help and nothing is working. She has something called sour crop. I’ve separated her, held food and water, gave her acv in her water, gave her eggs and massage her a few times a day. She still has a big bubble under her chest. If anyone has experience with this or knows someone who can help, please let me know!