No one else seems to be Amy, just me.
I appear as Amy when I comment on a post using the comment box, even on this, my own blog where I have to MODERATE the comment, but when I reply in the Comments section of the Dashboard, I’m Dotty again.
My gravatar picture still appears as Dotty.
I can still Like things as Dotty.
So if I comment on your blog I might come through as Amy.
I think it’s a glitch. Or I’ve gone completely mental.
I know which one I’d bet on.