have you ever...

Have you ever felt like this:

At one time, you feel happy, spirited. You feel that your world is yours. That your work is reaping. You're hyper. High. Adrenaline's pumping. You work. You rest a bit. You work. You think everything is alright. Work is your middle name. You have this wonderful picture of how your work will turn out to be in the end.

But then, suddenly the adrenaline stops pumping. You are not hyper any more. You are high no more. A sudden surge of tiredness overcome you. Your eyelids are dropping. Your mind refuses to concentrate. You are nauseating. You put efforts to keep your eyes opened. You simply know that: you cannot work anymore. Not tonight, not today.

This attack came to me today, at 7-ish. I knew I'd feel very tired from lack of rest and sleep. I tried to take a nap today but to no avail. Then it all came. So unfair.