Haha, That is a scary thing about media on the blockchain. Once it's out there, it's public and permanent. You can't 'undo' or 'delete' it.

I'm not nearly at your level of exposure but even I get a little hesitant once in a while when hitting 'Post' even on a comment!
I can just imagine the tension in your finger as you wonder, just before you say "ah hell, there it is" and hit 'Publish'! 😆
I don't think you're human if you don't worry, at least a little, about what other people are going to think.

As far as the concern... If you are hiding that you are actually an ax murderer, then ya... a little concern... for BOTH of us! 😂
Otherwise, you're likely all good. I know we're all humans. Hey, what one person might be embarrassed of about themselves, another person might find adorable. You never know!