Limping chick limp

[Jodizon]

Just noticed my chick is limping. Thoughts? Would love feedback about what to do or what may have caused this.
Click here for video of limp

 

[Jodizon]

 

[Jodizon]

I do not see an obvious leg or foot problem. She seems alert

 

[Jodizon]

I have her inside right now to watch her. She just sits but seems alert

 

[DollyGirl64]

Jodizon I just came across your post. How is she doing? I have a 12 week old RIR that's been limping and she curls her left foot up like yours is doing, when I pick her up to examine her. Same as yours, there is nothing visibly wrong with her; she eats, drinks, and poops normal. Did you find out what was wrong? My girl is smaller than her sisters but no one picks on her and she has her own little clique. I'm starting to think it's an impairment she's had since hatching but I never noticed in the brooder. The leg she favors looks smaller than the other. I'm just making sure she has ramps and steps so she can perch with the rest. She's very sweet. I may never get an egg from her but she'll still have a good life with me.