5-year-old hen walking on hocks.

[gingerz45]

I've seen other posts describing this stance, but my hen is no longer laying, so I don't think she's egg bound.
She is eating and drinking fine; in fact, she may be drinking more than usual and she likes to sit by the water dish.
I have been feeding vitamins and pre-/probiotics for over two weeks, but no improvement. She otherwise does not seem uncomfortable. I can pick her up and she will extend her legs fine. I can't find any injuries to her legs.
I do notice that she seems to be holding her legs further apart, but on palpation I can't feel any swelling in her lower abdomen, so maybe it's a balance issue? She has to be picked up and put inside the coop most nights, and she sleeps in a nest box. She hasn't been able to get up on the perches for longer than her other symptoms.
Would worms possibly cause these symptoms? She doesn't seem to be losing weight either. Open to suggestions.

 

[Eggcessive]

Walking on hocks can be a sign of riboflavin (b2) deficiency. Her wide stance and preferring to sit sounds like she may have a reproductive infection or disorder that is making it hard to walk. I would try giving 1/2 of a super b complex tablet daily, crushed in a little water or food. What do her poops look like, and pictures are welcome. Is her lower belly between the legs enlarged or full?

 

[gingerz45]

Walking on hocks can be a sign of riboflavin (b2) deficiency. Her wide stance and preferring to sit sounds like she may have a reproductive infection or disorder that is making it hard to walk. I would try giving 1/2 of a super b complex tablet daily, crushed in a little water or food. What do her poops look like, and pictures are welcome. Is her lower belly between the legs enlarged or full?

Her lower belly looks full, but when I feel it, it doesn't feel that way. Her poops are loose and she has quite a bit stuck to her rear, which I assume is due to the fact that she sleeps in the nest box and therefore rests in her own poop.

Can she still get a reproductive infection if she is no longer laying?

 

[gingerz45]

Update: The original hen has died and a second of my three old hens has also died. Now the third one is exhibiting the same symptoms and I am very concerned that there is some contagious process that is responsible. These 3 hens are the last of a flock from 5 years ago and we intend to take a break from raising chickens for the immediate future, but I would really like to know what has caused the three hens to become ill in rapid succession.

 

[Nomadicus]

Following as I have a pullet walking like a runner duck or penguin?