Boy, gpm, you did a lot of work! Well, with the addition of fibromyalgia, I want to change my vote to Carcinosin. Carc. is listed in Murphy's MM for fibromyalgia, plus, her story and her symptoms are not inconsistent with carc., which also has growths, as you can imagine. So, that would be my pick at this point. Carc and Phos are often mistaken for each other; very hard to differentiate.

Snoopy