I have a sablepoot chick that hatched under a broody, she was hatched on Monday. I recently found her laying on her side, legs up, nearly motionless. This happened twice. Picked it up, and she perked right up. I separated her. Not sure what is going on. She seems to be losing balance, and put her head on the floor, basically “rubbing” it. Any ideas/suggestions would be greatly appreciated 
—Thanks!

—Thanks!