I have a tiny bantam pullet, she is probably 5 months old, but tiny, tiny. Today she is breathing very hard and fast and her whole body is pulsing up and down. She is also shaking her head some and acts like she is choking or something. She seems very thin and when I feel her bones, throat, body it makes cracking sounds. She can't seem to make normal chicken sounds but seems like she is choking or coughing. I can't find what is wrong. I am worried she will not make it.