I have clinical depression and anxiety (ptsd) and I also hear voices. The main voice who acts like he's protecting me suddenly acted and talked to my friend, I wasn't that conscious of what he was doing. Sometimes I watch him pull me out bed and get me food etc. The girl voice, when i was very emotionally unstable, acted and cut myself trice. I wasn't aware of it. I only realised when I saw cuts on my arm and blood. This girl voice is also the negative voice who would insult me etc.