Estrogen excess can be described as too much estrogen in relation to progesterone, mainly in your luteal phase (the phase before your period and after ovulation). It is the most common hormonal imbalance in women. Excess estrogen is the number one cause of numerous PMS symptoms that make you feel lousy in the days/weeks leading up to your period. It fluctuates the whole month so it's not to be considered as a 'bad' hormone because it is essential for healthy ovulation and menstruation, but ...
