Eggs with no shell - not eating, drinking - still active

[Undimere]

My Buff Orpington wanders the yard fluffed up and broody but she shows no interest in eating or drinking and her eggs are shell-less. I provide her with calcium and baked egg shells. I have caged her with minerals and food and fresh water. I dewormed her in the spring. Help?

 

[GitaBooks]

If she is still laying, she is not broody. It sounds like she could have some kind of problem. Any other symptoms? Is she nearing molting time? How old is she?

 

[Undimere]

She is 2. She's low on the pecking order but when I bring out the feed she is the only hen that just wanders away. When I approach her she lowers yourself as if she's ready to mate and I'm the rooster. FYI: My area doesn't allow roosters.