This is more of a warning than a ghost story. Ghosts are the spirits of former people, (just like you). While some may be aware of their spirit-status, some it seems, believe they are still alive.
From a first-person perspective, an individual who has unknowingly broken their mortal coil, could seem to be living by simply repeating different parts of their life's journey in perpetuity, as the world spins on without a clue.
If you are at work right now, you are probably thinking “I feel like I am in purgatory right now.” Hey, maybe you are. To make sure you are not a ghost trapped in purgatory, find a clock, and watch it for a couple minutes. If the clock functions properly, you should be okay.
If not : \ ...