did i take the red pill or the blue pill?

Do you ever have a day that feels like some other day that you've already lived? I know, confusing. What I mean is deja vu of course. All day today I felt like this was a day from my childhood and I've already lived this day. So of course all day I've been plagued by nostalgia and memories. Today feels like a day steeped in time; stuck, stopped, and waiting for the time continium to rev up and continue.