Lost confidence

I was just relaying to my sales rep something that happened to me late in the work day yesterday...
This client -She behaved so abnormally that I immediately lost my confidence and I felt like my "decision maker" was broken!!  All of a sudden I couldn't determine how to resolve my project issue for the life of me.  I just felt helpless and powerless and that is anti-Nell...Especially at work.  But the slowness of her voice and the dramatic pauses and the misunderstanding of my simple explanations is the opposite of every other business owner I've worked with and that dramatic shift made me feel helpless because I couldn't even begin to predict what to expect!!!
And I wonder if people have felt that way about God?
I wonder if people have felt abandoned by the norm and felt that they all of a sudden don't know what to expect and loose confidence in God??

I was browsing all morning for some bible verse that spoke to that and I'm not sure I've come up with it yet but I heart the first chapter of Hebrews:)
...but in these last days he has spoken to us by his Son, whom he appointed heir of all things, and through whom he made the universe.  The Son is the radiance of God's glory and the exact representation of his being,...After he had provided purification for sins, he sat down at the right hand of the Majesty in heaven...when God brings his firstborn into the world, he says, "Let all God's angels worship him."..."therefore God, your God, has set (him) above (his) companions by anointing (him) with the oil of joy"...