I'm sorry that your question wasn't answered in a timely manner. We don't have many avian vets on this site. Your treatment for egg binding was apt but I'm not convinced that Cicic is egg bound. Those birds usually walk like a penguin and frequently squat as if to lay. You can glove up and carefully explore her vent with your fingers for an egg. In most cases they're palpable in that manner. In some cases I have to X-ray to "see" them in the proximal oviduct. Unfortunately, her cessation of egg laying and malaise can indicate any number of illnesses or health issues in chickens. In avian medicine, there's rarely one cause of such a presentation, so we usually begin with a list of differential diagnoses and use lab tests, X-rays, and physical exams to differentiate one from another. Necropsy of a newly dead or a sacrificed severely ill bird then refrigerated (not frozen) can be an important diagnostic particularly in large flocks. With this in mind, your best course of action is to reach out to your county-extension poultry personnel or avian-oriented veterinarian (please see here: www.aav.org) for help.
It's best to approach the diagnostic process with a clear sense of her financial value to your operation. Although some services such as your county animal disease diagnostic laboratory might be available free of charge through a county agency or land-grant extension office, the expense of some diagnostic tests and treatments can add up quickly. While it’s always worth your time and money to identify a bacterial or viral infection that could potentially impact more than one member of the flock, this might not be the case with a condition that only affects one hen. It frustrates me that I can't be more specific for you but such is the dilemma of poultry owners and vets alike.
I need you to perform a thorough physical exam for me. Please check her eyes for a color change or conjunctivitis, nasal discharge, sneezing, coughing, gaping, increased respiratory rate, pale/floppy comb/wattles, regurgitation/vomiting, diarrhea or lameness. Let me know what you find.