My 1.5 year old barred rock has been acting strangely walking around as if she is drunk. Walking sideways, and can't seem to walk straight at all. She's lost basically all of her feathers in the last couple of days. She is still eating and drinking. Some research said it could be worms, an inner ear thing, protein deficiency. I need help. Any advice about a chicken walking like she's drunk? I gave some deworming medicine. Should I be exploring antibiotics? Let it run its course? Help!