Like victoryvalhalla said, you do not want to crash your e2. I would suggest you get bloods asap. I know there have been some great threads on how and where to get bloodwork done on this forum. Maybe try to find it via the search bar.
Also, how often do you inject? I do small shots every day with a insulin needle and that keeps my hormone levels from fluctuating pretty well.
Everyone is different so its hard to say. I am also on 250mg of test (400mg of deca too) a week and take 12.5mg of aromasin a week. Half on monday and half on thursday and that seems to work for me. You might want to look into getting some raloxifine (like nolva but better) if you are having gyno. I keep it on hand just for that very reason. But 100% you should get bloods done so you are not just shooting in the dark.