You are reading about female cancer patients/survivors who are going after E2=zero. Their low estrogens is the cause of that hair loss. Anastrozole and other AIs would do the same. Many of those women have also been exposed to chemo and radiation that can also cause major hair loss.
If you found some data that applies to males looking to E2 in lower 20’s, please post that. You cannot include any male pattern baldness as that has a connection to T levels and gear. You also cannot include guys with hypothyroidism as that can cause hair thinning.
Now you then take major amounts of anastrozole and killed your E2 levels and you predictably feel like shit.
I don’t know what to tell you, its a mess.
This may be helpful: The PCT SERM dosing in this forum is wrong