Group therapy time

[Clodfobble]

I have been living a completely untenable daydream for a good four days now. I mean really living it--thinking about it constantly, playing the story out years into the future in my mind, planning out a variety of imaginary conversations I would have in this imaginary series of events.

Before you go all, "Live the dream!" on me, let me reiterate that this daydream is not just unrealistic, it is completely and totally impossible. I understand that it's typical escapism, and not surprising for a person under stress... but knowing the origin hasn't stopped me from focusing on it yet. How unhealthy is this, and how long before I ought to be concerned with the obsession?