im on first cycle 500mg test c. 2 1/2 weeks in i noticed a lump under my nipple. i got a scrip for 1mg arimidex and have taken it for a week. the lump is gone so i started on 10 mg of nolva today( thanks ar-r).so my concern is that i'm prone to gyno so i need something, but i dont want to limit my gains by too high a dose. i lost 5 pounds after 3 days on the arimidex and my appetite isnt for s**t now. so is this enough or do i bump it up to 20mg?