GoodLookingNerd said:
Hey man, sorry if I didn't see your message, my life has been quite chaotic.
How is it going now?
So, basically because finasteride lowers DHT, your body ends up with more unused testosterone. This extra testosterone can then be converted into estradiol, therefore your body's hormone balance shifts towards estrogen, creating an estrogenic environment.
With more estrogen around, your body's estrogen receptors get more activated. Over time, too much activation can lead to these receptors becoming less sensitive (aka downregulation). This desensitization can mess with a lot of estrogen-dependent functions in your body, from mood regulation to sexual health, genital sensation and so on.
On the other side, with DHT levels dropping due to finasteride, your body tries to compensate by making androgen receptors more sensitive to the androgens still available (like testosterone). That's because testosterone is very less androgenic than DHT, so you need more. This body "fix" can therefore lead to androgens receptor dysregulation.
Also the low SHBG means more free hormones, including estrogen and testosterone, that will be free to go around and mess with your receptors, so it's two side of the same coin.
This whole picture is, to the best of my knowledge, how PFS symptoms start. That doesn't mean you will get PFS, it totally depends on your genetics and epigenetics, and none can predict who will win this disaster lottery. Nonetheless I would SLOWLY restore back your hormones within range, especially estrogens.
PS: I will remind again that LC-MS is the only really reliable method for measuring estradiol in men. Yet ECLIA is still and indication on what we were expecting.