Not to discredit flax as I'm always open to other explanations but my breast pain has totally disappeared after dropping it 3 days ago.
I don't know what it's doing with breast tissue but the only other time I had pain with 50mgs/day Iodine was when I added in thyroid supplements. Then I had a return of fibrocystic pain....Flechas told me he's seen this before when a woman's regular doctor sees her TSH going up after being put on Iodine and puts her on thyroid. Thyroid supplements block Iodine from getting into the breast and the pain and swelling returns.
I don't think it's an estrogenic effect from the flax as I'm on bio-identicals and have no breast pain from those. Even if it is...the pain is evidence estrogen metabolism in the breast as gone awry. The breasts shouldn't be swelling and have pain at any time.