I'm currently blasting with test only on my TRT and am actually having ED...I've had a lot of trouble with AI recently finding the right dose.. when i started the blast (125mg/w test cyp to 400wk test cyp) I doubled my arimdex with the first injection and this crashed my E as I lost my libido and got ED. I stopped taking the AI and libido came back, but then I got a gyno flare. So I decreased to TRT dose again for a couple weeks and took nolva ( left AI off as I didn't want ED). Gyno went away and I restarted blasting dose a couple weeks ago with 0.25 of adex twice a week with injections. Now I have ED again... Is there a chance estrogen is too high and causing ED?