Can someone tell me why without fail after about 10-12 weeks of a straight test cycle i experience erectile dysfunction and loss of libido?! I run test 400 and up until week 10 i had a acrazy sex drive then within a week it crashes. I have only taken tamoxifen as needed intermittently if i start holding water or puffy nips. Currently have none of these side effects. Ed meds barely work either. What is going on, this happens every single time i cycle?? And how do i proceed from here??