I have one silkie that hatched alone. She is now with a batch of youngers silkies. She is around just over 2 months old. We noticed that when she is excited, turned up side down or is blown on (like wind or fan) she starts acting dizzy. She spins her head around up and down and it takes her a bit to recover. Then she is fine. She isn't sick in any other way. Yesterday I put her out in a playpen outside and she got another dizzy spell. Then she was fine. Is this something genetic or am I missing something in her diet? The rest of the baby chicks are about a month behind her and all seem fine. I have raised several chicks this year and not seen anything like this.