I have a 9 month old black australorp that has suddenly developed some worrying symptoms. She seemed fine yesterday but today she was just sitting by the water watching all the other chickens. I picked her up (which is odd because my chickens arent that friendly) and checked her over but found no wounds. I sat her back down and she waddled away from me. I took a video of her waddling thats linked below. Her abdomen also feels like a water balloon. Soft and fluid filled. I thought maybe she is egg bound? Does that sound like the right symptoms? Please someone help me help my girl!