 You actually believe q to degree x, you are confident (say at .99) that you so believe, and you have an uncomfortably high level of confidence that you are not calibrated for q at x, that the objective probability of q when you are x confident of q is y. This state escapes incoherence for two reasons. One is that one’s confidence either about one’s degree of belief or one’s reliability is not 1, and unlike some conditional probability formulations of self-doubt above, the slightest uncertainty is enough to make it coherent to attribute a large discrepancy between your believed confidence and your believed reliability.