She could be broody, or on the verge of broody.
Take a look at post number 791 on this thread - that's a video of Romy, broody, that I posted a while back.
https://www.backyardchickens.com/t/850706/the-broody-duck-thread-for-2014/790#post_13973888
Any similarities?
Also - you have two...