I don't actually think I'm a very naturally gifted vocalist (unlike my art and guitar playing ) so I've really had to work for every ounce of ability I've drummed up over the last few years but, like you, the stage fright/anxiety keeps me from performing :/. Shoot, I won't even sing karaoke in front of a group of drunks, which baffles people who've enjoyed my music. Anyway, I think people who were born to sing and not only have the natural talent, but love it, too, are special and I hope you find a way to share (and profit from) it.