doctor john has made some good points. why would a real endocrinologist treat you with an over the counter aromatase inhibitor...and a twitchy one at that.
you dont want your estrogen that low, even 4 caps of rebound xt a day is quite a bit of ATD (the actual drug).
are you still capable of sexual function with such low estrogen levels? if you arent having problems yet, in all likelihood you will be.