go to a bar, with a couple of friends. have some drinks, too much to stay sober, not enough to fall asleep like a stone when you get home late (or early, depending on your point of view), which you do. lay in your bed, think about strange things, what happened, what you did, what you said. lay in your bed and try to keep your eyes closed, try not to count your own heartbeat, which you can hear every time one of your ears rests on the pillow. get up an hour later or two, you didn’t get any sleep, maybe dozed off a little, but that’s all you’ll get tonight. have a shower, lay down again. try to hide from the daylight and the first sunrays that hit your face, reflecting in the windows of the house across the street. state that your curtains still aren’t dark enough. try to get the person next to you to wake up. go eat or drink something. feel the headache coming, the one that is planning to stay at least half of the day. finally, give up, get up, switch on your computer, and write a strange statement like this one just because you feel like it, which get’s you to the only possible conclusion:
this is where hangovers come from.