I don't think she is broody but I did see something on her foot like a blister that's gone hard.Does she sit in the nestbox all fluffed up and screeching when you try to reach for her?
If so she might be broody.
If not there could be something wrong with her like mites - she would look quite pale then.
Or a problem with her oviduct like an egg not passing or an infection going on. How does her rear end look like, is it clean or messy?
Or she might have a problem with her leg or feet i.e. bumblefoot.
thanks, I looked at the vid, it is bumblefootThis would be a bumble foot problem.
There are different ways to treat this problem, surgical and non surgical:
https://www.backyardchickens.com/threadloom/search?query=bumble foot treatment&tab=618
You might want to also look into some videos:
hi pamThe vet on TV, the Incredible Dr. Pol treats bumble foot by placing antibiotic ointment on the foot. If you have some triple antibiotic ointment or Neosporin you could use that temporarily until you can get some. You can also order antibiotic spray online from Amazon for all animals that is Veterinary grade which is good to keep on hand for all your animals. I just got some in last week for myself that is good stuff and not too pricey for the quality and need to have for the number of animals that can get into situations at the blink of an eye with mischievous hens and little dogs that I have. 11 to be sure at my house with another furry friend coming in the way of a Giant Schnauzer to boot. I must have rocks in my head but my mini is my best friend and my son needs one for himself. They are God’s gift. He lost both of his grandparents last year so he needs some extra love back in his life.
I think the ointment will really help. I wish I knew the proper dose of a liquid anti-inflammatory to give chickens safely but I do not so I would be very afraid to even discuss this with you as far as trying that for some pain relief for her but I am sure with the ointment after a few days she will be fit to do her regular activities.
Good luck and have a great day in and out of the coop!