what kinda test are you using, its its test E or test CYP then they will stay active in your body causing that gyno for a couple of weeks if not more... so that means you have to take the nolva indefinitly until the gyno starts leaving, and then keep taking it after the fact because its still going to be active in your system, nolva will lower estrogen levels, so the gyno will leave, but if you get off it, the levels will go right back up since the test levels are still high and active in you, thats why you keep on the nolva even after the sides leave, also if its an extreme case, get off your shit, get some arimidex or letrazal and say goodbye to estrogen, keep on top of it, dont let it go man if it gets bad bad only surgery can fix it... you dont want that...