12 week Ducking can’t move legs

[Houdinismom]

Hi all, my duckling started not being able to walk right on one leg a few days ago and now cannot bear any weight on either leg. I have her inside with food and water and just started giving niacin and nutritional yeast hoping that’s the problem she does seem a little more active with her head at least since she really can’t move. She stretches her wings and tail fine. Any suggestions there is no vet nearby and we love her so much.

 

[nuthatched]

It will be a bit before you see improvement on the leg if it's deficiency, is there any sign of injury or swelling?

 

[Houdinismom]

The second picture looks a little bigger than the other but they are pretty similar.