She was about 11 when the voice started in her head. It never claimed to be God or the devil. It never issued instructions, neither criticized nor praised her. The voice didn’t talk to her directly, not even once. It didn’t react when she screamed back. It narrated. It never stopped.
As she would run to her room and stuff her head in her pillow, wetting it with tears and feeling it yield against the tensed muscles of her face, the voice would continue explaining. “She ran to her room, and threw herself on her bed, stuffing her face in her pillow.” When she finally audibly shouted “Shut up!” in the silence of her room, the voice would say “She shouted ‘Shut up!’” and wait for her next move.