heres my experience. my first one made me go nuts..i mean like i have no clue how i got out of it. im thankful that i didnt get hurt or hurt anybody...the voice in my head sounds like some ppl i know. like friends and family. its usually a male. i stopped hearing voices for awhile which allowed me to grasp back the reality. but i got curious...i started to concentrate on hearing voices again and i hear them sometimes...they are really low. if i ignore it. it soft and not too negative but if i start talking to it. it gets really loud.