One of my newly hatched chicks, Miracle, just died. It was SUDDEN. I was sitting in the den and heard really loud peeping...went over to the brooder, and she was laying on her back peeping like crazy. I picked her up, she peeped once or twice more, and then died in my hand. She was an assisted hatch (internally pipped a vein), but has been fine since she hatched. Eating and drinking. What in the world would have caused her to die so suddenly???? She was fine today...running around with her siblings, not acting abnormal....please give me some insight on what may have caused her death!!! I'm worried about her siblings now!