My hen, Dutch Bantam, is acting strange and I'm positive that she has mites in her or something, but i'm not an expert. She isn't pooping as much, always unbalanced and can't jump. Once I went to close the door on the chicken's pen, and I only found her sister, Raven, in there looking sad. I went around with my dad and found her behind the pen, looking like a clump of grass. My geuss is because she was to weak to jump that 3 inch gap between the ground and the door. She's eating regularly, and doesn't show pain while she eats. So she isn't pooping as much, unbalanced and can't jump. Any ways how I can help her and why she is this way?