I’m so pleased to find out this is a thing for other people too.
Whenever I recall any memory which triggers a negative emotion (eg mild embarasment at something I did or said), my subconscious blurts out a random phrase, often a complete surprise to me any anyone else in the room who asks what I meant by it, to which I reply absolutely no idea!
I say things like “oh dear” or “oww” out loud, I can’t control it happening, just what I do when it happens.
So, that’s 4 of us, I thought it was something I did.
There must be a name for this kind of ‘mental’. Gets worse when I’ve not been on the bike for a bit.