Thanks for these interesting posts. I, too, have gynecomastia, although in puberty it was mild compared to yours. In my 40s, after separating from my wife, I became especially unhappy with having breasts. It was only in my sixties that I came to view them as a gift, as my erotic center (I am able to have nipple and breast orgasms--my sexuality is mammocentric rather than phallocentric, a whole different world of physical and spiritual feeling).
As for your inverted nipples, you might try Supple Nipps. They can work wonders and they are inexpensive.