Would it make a difference how you continue to react now, if you know either way? Just curious.
Of course you have to include the possibilities of meds or needing meds,what such stress can cause, and the fact that you're talking to yourself, don't you usually also answer?
Plus, as a Christian, certainly the Holy Spirit has spoken to you, through you. So whether it's what you know, your own wishes or otherwise...
but yeah, it can be unnerving to actually hear (or think you hear) a voice. It all sounds good to me