I have Fibrocysistic Disease of the breasts.
According to my family physician, it is a very common condition that appears in nearly half of the female population. It is a condition that manifests itself as a dense lumpiness. And, it is this density that can make the interpretation of a mammogram difficult. But, the difficulty in viewing such mammograms makes doctors, radiologists and technicians all the more vigilant when forming their diagnostic conclusions.
My doctor also noted that it is a condition that is probably heredity in nature... so, there's no much that one can do to make this condition "go away" if one is born and inherits a propensity for it.
My recommendation is: perform regular self-exams and note any abnormalities or changes; have timely check ups and diagnostic tests as deemed appropriate; and try not to stress out and worry about it.
About half of all women suffer from Fibrocystic Brease Condition. You definitely need to stop obscessing about this as it will no doubt continue. These cysts and even often Fibroadenomas (benign breast tumors) will develop and you have been given good advice as to what to do about them. If the cysts become very large or cause a great deal of discomfort they can be removed surgically but they may continue to occur. You certainly are not alone in experiencing this condition. Take care ....