Right! Much of the fats stored up there is holding toxins for elimination anyways, just like the liver does.
A veg-heavy diet, with a lower porportion of fruits, really helps up collagen production, and strengthens the way the breast supports itself. It takes time to reduce the overall body burden of fat, but surgery exposes the body to the materials it was otherwise storing in the tissue deposits, and to the burden of healing the cut tissues.
It sounds like way too much estrogen production, too. Iodine and heavier amounts of vitamin A help drop that problem. Is there heavy periods involved?