Hi
@lmdengler 
Welcome To BYC
A video would be great

You can upload to youtube or vimeo and post the link for us. (I think that's right).
Can you tell us a little more about your hen:
How old is she?
When was the last time she laid an egg?
What type of food/treats do you feed?
Is she eating, drinking, pooping - anything odd about the poop?
When she does walk, does she limp?
Does she have any swelling, bloat or feeling of fluid in the abdomen?
How does her crop feel - is it emptying overnight?
Have you added any new birds to your flock within the last 30days?
It's so hard to know what's going on when it comes to laying hens. There's so many things it can be.
See that she is drinking and if she will eat for you. As long as she's peaceful with the flock, I would not separate her. If she is lethargic and can't eat/drink on her own, then separate her so you can monitor her closely.
Keep us posted.