If you find the large list of FMS symptoms, Cystic breast is a symptom. Also drinking or eatting anything with caffine in it will worsen that symptom. I do not mean a cyst that is infected or is a growth and getting bigger, I mean lumpiness that is hard to self check for the lumps that could be cancer or a clogged milk duct. I am not sure where to find the large list of symptoms but you can try to google just that list. I hope that I helped some. Sharon
Fibromyalgia does not cause that a lot of women have cysts in the breast it is very normal