chicken limping but eating and drinking fine

[babychickens321]

Can you get photos of the front of her feet/legs so we can see the scales? From what I can see, nothing screams SLM.
I don't really see anything that makes me think she's got bumblefoot. Her feet look slightly puffy.
You can try giving her a daily soak in epsom salts to see if that makes any difference.
Dry her well before she goes back out, especially in cold weather.
Slowing trimming/filing and reshaping her nails back to a suitable length may also be helpful.

thanks a lot for your help! will try and get another picture