I responded in a post above here's a link to that.Sorry didnt know I was getting any feedback on this thread.
She's only 8 months old and yes she's been in my care, along with 10 other hens, since she was 3 days old. She eats organic scratch and organic lay pellets. I suspect she took a fall in coop and broke her wing originally(maybe multiple times) that's caused her to be unbalanced if that can happen. Possibly even hit her head. Her feathers appear to be slightly raised on that half of her head. I've examined her head and pet her yet she doesn't react injured.
Not sure if you've seen my followup. She's responding well to the vitamins/electrolytes. Standing tall, walking straight, stretching leg on injured side and grooming herself. Yet she can't get to her oil gland. Wondering if I should offer olive/coconut oil? Thank you for your response. I've tried uploading a video (even 30 sec) but it continues to say file too large.
https://www.backyardchickens.com/threads/ameraucana-quickly-on-the-deline.1279470/#post-20623135
For video, upload to youtube or similar platform, then provide us a link, the BYC upload does not work.