Got some bloodwork done to get a baseline as I start my HRT (spiro and raloxifene). I have an Estradiol level of 5.8pg/mL and normal range is 11-43 pg/mL. Google says that low etradiol levels can cause: lethargy - check, low libido - check, dry skin - ...check, hot flashes - ...now that you mention it, poor memory - ......check etc.
I'm still not 100% sure about transing my gender (my treatment plan has a goal of limited irreversible changes for the time being), but I have to wonder if it is a coincidence that I came to the conclusion that transitioning and the mental/emotional changes from estrogen might be the best way to help me break out of my depression. Now I'm doubly excited for the changes that might happen.
I have the same hesitation and got prescribed a SERM (Selective Estrogen Receptor Modulator), Raloxifene. My Doctor said that they are unlikely to get me to natal female estrogen levels and will eventually cause some breast development, but I'm using it to dip my toes in the water and see how it feels.