I have a very young chick, less then 3 weeks old, that is having these symptoms. She's walking with her tail down and has a squishy, distended underside. When I pick her up and press on it she doesn't give any indication that it hurts her. And everything I've read says it's most likely that she's egg bound, but she isn't old enough to produce so I don't see how that could be. Has anyone ever dealt with this before? Is there anything at all I can do for her? This is a chick that I basically brought back from death when she was about a day old. I am desperately hoping there is something I can do for her because it would devastate me to put her down.