Ok ive been posting about my gyno problem but hear me out on this. Since i have been taking tamoxifen my sex drive has gone down ALOT. Before a couple weeks ago when i started tamox i was having sex atleast 1 time a day and now i days go by without even wanting to the gf has been accusing me of cheating because of this change lol ive never been like this and honestly i hate it. But i have seriously noticed that on the days that i dont i have no gyno pain and if i go days the lump actually gets smaller. What would be the cause of this? Sounds like im crazy but this is whats going on.
There is a prolactin, oxytocin, and testosterone release with sex.
However, if I were you, I would talk to an endocrinologist to work with this issue, as well as that of your libido issues.