After all the cycles, cruising and blasting never have needed an Aromatase inhibitor (AI) for controlling estro. I have just started a cutting cycle, four weeks in of clen 120mcg, test 750mg pw, tren 100mg ed, stanozolol 50mg ed, aromasin 25mg ed. Just 2 weeks in from starting aromasin behind my left nipple it is very painfull to touch, isn't puffy but has a slight lump behind. Doesn't seem to be getting better and not sure why it would flare up now. What should I do? Is it gyno? I can't get letro is there any other options?