I have a chick that is a week old, and falls over when bumped by the other chicks or when cleaning herself. She was smaller than the rest of the chicks I hatched, but seems perfectly normal....until she gets bumped by the other chicks. She falls to her side and lays there, kicking her feet, and cheeping pitifully. When I pick her up and put her back on her feet, she runs off and seems fine. She eats and drinks without assistance, mingles with the rest of the chicks, doesn't have problems standing and moving around (unless she gets knocked around by the others), and she's not splay legged. She is growing at a slower pace than the other chicks, that are the same age. She is about half their size. If it weren't for her size, and the inability to right herself, I would say she is doing it for the attention. She is precious, but we are concerned that this issue could get progressively worse, or cause her problems later on. I am hoping it is just a side effect from being so small at hatching, and that she will grow out of it. Has anyone seen anything like this before?