Yes I have, many times!
Examples: we have lived in different countries. Every now and then (not often, but enough for it to be a recognizable 'thing' with me) a different part of me seems to be looking through my eyes and feeling great confusion about where we are. So sometimes this means that I might be internally reeling about suddenly 'noticing' that I am in 'x' country... when the reality is we have been in 'x' country for several years.
Another time a family member arrived and I was confused about his car... couldn't figure out why he had a different one. (The car 'I' was expecting was the one he had like, 30 years ago).
Another time 'I' was in therapy when I suddenly freaked out that I was in a different country, believing I was in 'y' country instead.
I think these are all similar to what you experienced, yes? I view it as some internal part of self peeking out after a period of time (long time, one month, one year, one decade, it's all the same really) and being aware that the outer environment has changed.
It is... disconcerting!