Opening the Donguibogam library...
Opening the Donguibogam library...
Opening the symptom encyclopedia...

Has your heart suddenly pounded furiously, leaving you gasping for breath alongside the chilling thought, 'Am I going to die like this?' Whenever that moment strikes, leaving your whole body trembling and engulfed in terrible anxiety, you might have shivered in fear all alone, wondering, 'Has something gone seriously wrong with me?'

Have you ever experienced a sudden moment—on the subway or in a crowded place—where your breath catches for no apparent reason, your heart pounds wildly, and your entire body freezes with the thought that you might die right then and there? Is this inexplicable, extreme anxiety something only you are suffering through?

Did your steps feel heavy on the way to a gathering today, or did your heart sink at the thought of giving a presentation? If others' gazes feel sharp and you constantly want to hide for fear of making a mistake, this might not simply be a matter of having an introverted personality.