I'm unable to realize it explicitly at this this time, but I've begun to consistently experience partial echoes of my emotional reactions, thoughts and interior monologue—even the inner impressions of perceptions—approximately two seconds after they occur.
To understand the nature of what I'll be describing more clearly imagine walking into a quiet empty room at 1 pm. A cuckoo clock whirs to life, startling you, and you twist your head to see it. It gives one quick “cuckoo.” Giggling at yourself, you watch as the tiny bird snaps back behind the doors of the clock. At 1 pm. and two seconds the clock's doors have just shut, yet suddenly you're struck with the same sense of surprise you had when you heard the mechanism first start 2 seconds ago. Less than half a second later the sensation of twisting your head to see the clock recurs. You experience vertigo because in truth you haven't physically moved a bit. Still standing there looking at the cuckoo clock’s closed doors you can almost see the bird pop out and almost hear it's chime. It's more than a vivid memory. What you're experiencing is so transporting that you feel at a far distance from the image of the clock that is actually present an arm's length before you now, like you're a step behind yourself and trailing in time. Expressionless, you feel a mild sense of relief followed by a short spike of elation and a blush spread across your face. This is what that laugh you had at yourself a moment ago would have felt like if you hadn't smiled. You're getting the first hints that something's seriously wrong. Now the muffled echo of that 2 second old laughter is mixed with brand new confusion, which will soon mount to dread. You turn to leave at 1 pm. and 4 seconds, yet as you take your first step you feel a part of you is still standing still, looking at the just closed doors of the clock... This is what's just happened to me.