Look, I am no expert, just a guy who is super-desperate to find a solution. But in my opinion if you are injecting 400 mg once every two weeks, you are loading HUGE amounts of T in your body. It jacks up your T levels really high, and together with that your estrogen goes up. Now, this is just a speculation, you would need to see your blood results. If your estrogen is high, this is almost like an anti-testosterone.
Peak, would you agree with this assessment?
I was reading TRT forums lately. A lot of them unfortunately are bodybuilders. They shoot CRAZY amounts of stuff. They start at 250 per week, and go as high as 1000. You being on 200 per week (effectively) are not too far from their lower boundary. And they all use arimidex to control estrogen.
Post your blood results when you have them, pls.
Also, who is your doctor - hormone clinic, urologist, endo, or family physician?