Are you familiar with that feeling you get when you leave your house that you actually forgot something important yet you can't quite figure out what is it, no matter how hard you think and think of what could you have forgotten that you can't remember?
I know you have felt it before, because it's a common thing indeed, yet every time someone feel it, it's just a matter of time before you recall what you forgot at home, and that's what happens with me all the time since I can remember.
However, today's feeling is quite different to be completely honest; it's like what I did forget this time is much more deeper and personal than the previous ones. It feels like I haven't forgotten a thing in the first place, but if that's true then what could it be other than a thing?