I'm curious to know if any of the women here have been tested for low amounts of estradiol. I've been reading 'The Savvy Woman's Guide to PCOS' (as I have both PCOS and FM) and there's a list of things that are clues to if you have low estradiol, including fibromyalgia, worsening of IBS symptoms before and during period, loss of energy, restless sleep, food cravings for sweets and carbs, memory and concentration problems worsening before period, anxiety attacks, worsening allergies, migraines, etc. I see my doctor next week and want him to test my levels! Just curious to see if anyone else has done it and what their results have been. Perhaps if we are low, and we get an increase of this estradiol, our symptoms will somewhat be alleviated?