Okay so a few weeks ago I lost a young pullet to unusual symptoms. The bird acted lethargic, puffed itself up, closed its eyes, retracted it’s head inward, and eventually it couldn’t walk. It also would occasionally make strange noises unlike anything I’ve ever heard from a bird (sounded like a duck). Eventually despite my nursing it passed away. Now I have a hen who’s very important to me which started having trouble walking yesterday. It would stumble drunkenly and use its wings to support itself. Today it is having trouble standing at all and is acting aggressive (usually friendly). It currently just waddles in its knees and can make runs before falling again. It’s acting very lethargic, but still eating and drinking. I’m fairly confident it’s not mareks as all my birds are vaccinated and the area I am located in is luckily clear enough. Anyone had experience with this? Anyone knows any methods to get her to walk normally again?