Amnesia

You wake up and squint your eyes, feeling dizzy like hell. Your head seems to weigh a hundred kilos, black spots are dancing in front of your eyes, your mind seems to be plunged in fog, your body is hurting you everywhere. You don't feel well at all. Everything seems distant and calm. The little you can see in your state is blurred and faint. You fall unconscious again. You wake up later, you are still dizzy, but your mind has come back to a normal state. You feel some sort of emptiness, then you realise: you don't remember anything. Nothing about you or who you are, your family, your life, not even your age or a single memory. Nothing. You just remember your first name. Then you hear a voice saying:

Oh, you're up. I was starting to think you were dead.

You wake up and have lost your memory