It's something that I think will be with you for a while longer - it will, I'm sure, dissipate in time - but for now, it will come and go - learning not to let it rule your thoughts is the key.
You certainly don't look anything but male, Darrin. I think that perhaps we sometimes mis-hear things like "ma'am" when they may have said "man", etc. - then our minds automatically twist it into what we fear. It makes sense to me - after all, when you first start presenting as male in public, passing is paramount and what seems to validate us. When we were knocked down if someone mis-gendered us, it was as though we were invalidated as men over and over again. I shouldn't say "we" as I'm speaking for myself and interpretations of my own experiences - but it's just an automated response that is triggered in my opinion. After a length of time, your brain becomes conditioned to react a certain way and to even prompt us to be vigilant about possible threats to our sense of safety and self - hence we can be hyper-sensitive to perceived mis-genderings or social cues that may not actually be what we are interpreting them to be.
Don't fret too much - it's a normal reaction, in my beliefs. You're still early in your transition and still finding your way and sense of foundation in yourself as a normal man. It all just takes a little time.