15 years ago, I was told that I have osteo, I have a lump on my neck. I take calcium and the lump has not got bigger for many years. Often lumps in the neck are swollen lymph nodes and can occur due to chronic and recurrent upper respiratory infections. They can also be muscular in origin. Calcium is only useful if in treating loss of bone density.
Flaxseeds are amazing in that they contain two separate sources of estrogen like substances.
I'm glad to hear that the amount of estrogen depends on risk factors. That explains a few things to me. Women in my family are prone to problems with the ovaries, even after hysterectomies. Women with tubal ligations are more prone towards menstrual irregularity and heavy bleeding than meno related problems, in my experience. Lack of libido after meno is commonly seen in as many as one half to two thirds of women, because of declining testosterone, estrogen and dopamine levels.