Tail bum drag off balance

[Brahmamamma22]

Hello all
Absolute quandary as to what is going on with one of our Brahma chicks- she is 15 weeks old and when we put her out today couldn’t balance and back end was going down. We have kept her in but it’s like she’s forgotten how to use her legs it’s really worrying
Any signs and symptoms of anything as I’m a chicken newbie

 

[Wyorp Rock]

Please post photos of her and her poop.

If you have video of her movement, that may help too. Upload video to youtube and provide a link.

What do you feed including treats?

I would make sure she's eating/drinking well.
Since it seems like her legs may be the problem, look for any swelling of the feet and leg joints.
I'd get her started on B-Complex, 1/4 tablet daily.

How is she housed? Outside in coop/run, in brooder cages, etc.?

 

[Brahmamamma22]

At the moment in a cage x

 

[SmiYa0126]

At the moment in a cage x

Like @Wyorp Rock suggested, get her started on b complex supplement.

If you're feeding them too many treats, you should stop for a month, focus on the regular feed.