Strange feeling of emptiness and not belonging?

I wasn't sure where to put this but I have a question.

Does anyone ever have occasions where for just a few minutes you have this bizarre feeling of being completely alienated and 'not belonging' at home with those that live with you, ie. parents/partners etc? I mean more than the usual feeling of not fitting in with others in general that indigo people are supposed to feel (which I do anyway), but like a sudden emptiness and 'not belonging'.

It's hard to describe and for me it may only happen once every couple of months or so, and only for 5 or 10 minutes, but it is most unsettling. It's like looking at someone close to you but thinking "I haven't got a clue who you are" sort of thing!

Can anyone relate to this?