Deanna,
Moving post.  I too have wondered such things out loud and with community.  Tonight out topic at the Distillery was on accepting doubt.  So this of course is right on topic with me.  

The truth?  We are all guessing most of the time right?  However, I think that this kind of conversation from God is typically the most verifiable clue of God's existence.  Most of us cannot count on the audible voice of God chiming in through loud speakers in our bedrooms at night.  However, I have often heard God through a song, or through the characteristic chatter of my friends or loved ones.  God speaks.  we know this.  And I think this is how.  :)