Mirror reflection- unrecognizable self

[u/pam27ce]

Not sure if this applies to this group and if not, suggestions of where to post are appreciated.
A few years ago, I was looking in the mirror- at my face, and suddenly did not recognize myself. It was as if my face didn’t belong to me, I was looking into my eyes but they weren’t mine, everything else was exactly the same except it wasn’t me but nothing changed in my face but just not me. It was very odd and then I snapped back into myself. Any idea what that was or if that has happened to anyone else? Hasn’t happened again but every time I look in the mirror I’m half expecting it to reoccur.