With a little weird sense of doubt, I think he has delivered. (indieethos.com)
Other times a nagging sense of doubt or dread that my leaving might have hurt others or the heart of God. (nakedpastor.com)
To the men of the last type their own success is a constant surprise, and its fruits the more delicious, yet to be tested cautiously with a haunting sense of doubt whether it is not all a dream. (entrepreneur.com)