Can too much progesterone cream convert to estrogen?
Hi Wray, thanks so much for your fabulous site, it's really helped me through a horrendous time with my health. I have been suffering with functional hypothyroidism for the last few years which I have recently discovered was caused by estrogen dominance - caused by discontinuing birth control pills years earlier. I see a hormone doctor in London who was the first person to test my sex hormones and et voila my estrogen was 3 x the amount it should be. I for the last few months have been put on 25mg of progesterone in the follicular phase ( I am 31) and 50mg in the luteal and it has worked beautifully in reducing my estrogen symptoms and most importantly for me I am now using my thyroid hormones as the TBG has decreased.
However this month I have noticed I am getting slightly tender breasts prior to my period and I am concerned that my estrogen might be on the rise again a touch. I have read that if you take progesterone that is greater than a physiological amount the excess progesterone can convert to estrogen and so essentially you end up giving yourself estrogen dominance. I'd love to hear your view on that if possible as I'm concerned I might now be making matters worse. Many thanks, Laura