Chicken walking, then sitting down - Help!

[7cluckers]

I noticed today that my 2 year old Ameracuna hen is walking funny. She walks around and then sits, gets up, walks, then sits again. She seems to be eating fine and while walking around in the yard it didn't seem to be bothering her, but I'm worried. She just molted, so feathers are starting to grow back. Not sure when she last laid an egg; she's never been a good or very consistent layer. what could this be???
-video link below-
https://docs.google.com/open?id=0Bxb7Dd9-P4MPanVNY0dSZGdiaEU

 

[7cluckers]

anyone??

 

[Chicken World Mom]

Hi there, I watched your video and it does seem odd . Just a couple questions , is her abdomen distended at all? You said she was not a consistent layer, could she be egg bound, laying internally? What are her droppings like ?
Hopefully someone who has more experience will chime in. I have been having some issues myself...still unresolved , but there are some very knowledgeable people on here...Ruth