Lump Under nipple but low estradiol.

[Rodney]

I’ve been on TRT for about a year now and taking test 200 cyp @ .4 2x a week along with HCG @ 500 iu’s 2x a week. Started taking anastrazole .125 2x a week about 8 weeks in because a lump develop under nipple. Took tamoxifen, started anastrazole and it cleared up. Fast forward approx 6-8 months I went and got blood work done because I felt like complete crap. Testosterone was 854, and estradiol was 8. Labs drawn day before next dose. I quit taking anastrazole and after 8 weeks I got my estradiol rechecked and it was 16, although I have a lump under my nipple. Any thoughts on what’s causing the lump? I’m 35, average weight, and this isn’t my first go around with TRT.