My environmental doctor I have been seeing since 2000 suggested diet to control headaches.
He did a lot of food allergy testing. Aspertame and artifical sweeteners
caused my migraines, sugar cause my headaches. Illiminating these items from my diet has helped me considerably.
I would start with food allergy testing to see what foods she is allergic too.
Sticking to a diet will help many of the symptoms. Drugs are not the answer.
Supplements/vitamins are more beneficial for fibromalygia.