Ok, this is just odd.

Can anyone explain where a particular fear might have come from?

I am transitioning, don't own any male clothes, run around in a bikini or dress and heels with not one issue.
so, WTF is making the idea of putting my pic online en-fem terrifying?

It just doesn't make sense, no problem walking down the street in a dress, and yet can't post a pic of me wearing one online.

edit to add:

I'm 100% out, everyone that sees me knows I'm in transition, that is why it is odd. that I am bothered by the idea of putting my pic online.