Can you tell me what fibrocystic breast changes are?

Yes: Also called "lumpy bumpy" breasts, it is not a disease. It actually gives your breasts their internal structure an after menopause a lot of that architecture is lost and what leads to breasts "falling." in the mean time, right before your period your breasts are more lumpy bumpy and tender. Right afterwards they are less so as fibrocystic areas of the breasts are sensitive to your own hormones.

Common problem: Fibrocystic disease/changes is very common in women. This is most often seen during the menstrual cycle. Breasts feel lumpy and painful which is caused by cyst formation (fluid filled areas) due to hormonal changes. Some women may have these changes without being on their menstrual cycle. Caffeine may cause the cysts to be overactive resulting in pain. This is not related to cancer.