I have a tiny D'uccle pullet who is 5 months old. She hasn't been acting herself, or for that matter, acts like she isn't all there. I have her in a small brooder by herself, and when ever she pecks at food, she misses, and "throws up" a slimy clear/white liquid. She is under a heat lamp, and has access to fresh water and food. She also doesn't weigh much, but is not skinny. It is only because of her size. Her poop looks normal, but there appears to be a little bit of blood coming out of her nose! What could be wrong? What should I do?