Alrighty guys need some help here. I did a trenazone+halotest25 cycle last November. Got gyno 2 months after pct, so around February of this year. Finally went on letrozole+ formastanzol and cleared up gyno symptoms, after letro I didn't use nolva I just continued formastanzol since its an AI, everything was all good until my nipple is getting a little sensitive again, it's been about 2 months since the letro cycle. I can feel a tiny hard ball also. Should I run letro then nolva+erase this time or just start with erase? Also why didn't the formastanzol prevent the rebound since its a suicide inhibitor?