Rei ojou-sama
I am really scared
sweatdrop Do you have a regular psychiatrist or psychotherapist? If so, put a call through to them and tell them what's going on. If not, you should seriously consider going to someone.
The various reasons that I know of for having hallucinations can range from sleep deprivation to mental illness to drug use (particularly cocaine), and any one of those is a reason to talk to your doc.
Just hold onto the fact that what the voices are telling you to do is not something that you really want to do, and that you can get help from people who will understand what you're going through.