I have a week old chick that has had a large crop for a couple days now. Its not hard like impacted crop, and it doesn't feel mushy or watery like sour crop. It feels like a balloon filled with air. I can massage it and sometimes it seems soft and malleable but for a few seconds it turns hard. Super weird. Any ideas? Could it be sour crop? Is it okay to separate a week old chick by herself? I would like to withhold food for half a day to see if it goes down. I have supplies for a epson salt drench and also the dulcolax laxative gel pills but wasn't sure if those would apply to this case. Thanks in advance for any information or advice! Also I should add that she is still active and is eating, drinking and pooping. The crop just isn't going down.