Anyone sensative to gyno have a problem when running HGH? I started HGH not that long ago and do between 2-3iu ED with 2 days off per week. I have a small existing lump in my left pec from a test/deca cycle. My left nipple is getting puffy/burning so Im going to try letro slowly building up to 2.5mg ED then trying to clear it for a couple weeks and brining it back down. I was trying to find info but from what I read HGH actually increases estrogen and prolactin. Im not running anything else right now but plan to start a cycle soon, hopefully this will be taken care of by then. Anyone else have similar issues?