This does not sound like psychic ability. This sound like some kind of state of mind, that you go into sometimes when the circumstance are right and probably linked with what happened to you when you were a child.
If and when this happens again, you should not concentrate on the voice, but rather concentrate on something else that will take you out of this state of mind. All these years this have happen to you it have not taken you anywhere, so this is something that you need to stop from happening.
Sometimes we keep within us all kinds of things that have happened when we were kids and what we created in our minds then.
The spirit world does not work like this, and you have nothing to worry about. But if you are very interested in these things you should learn to meditate to start with and learn to use your energy and see where that takes you.
My English is not good enough sorry, because itīs not my first language, but I hope you understand what Iīm saying. I worked as a medium for years and I have done lot of work in guiding people when it comes to psychic matter.
