The other week, I noticed my 2-month old chicken Willow was acting a little sleepier than the others. She slept a lot and didn't like to walk or run. Over time, her health spiraled down and now she is completely unable to walk without falling forward or onto her sides. She has completely lost control over her legs and once she gets her legs moving she cant stop them without running into something. Her leg muscles are almost nonexistent and she is very underweight. Despite being so sickly she is still hungry, but she can't get food and water without my help. I thought it was Marek's disease but she doesn't have greying eyes, rough skin, tumors, or vision impairment. I have been raising chickens for 5 years and I have never seen this happen to one of my hens! Does anyone have any idea what she has and what the treatment should be? Please help!