I am deeply appreciate of the writings and ministry of Martyn Lloyd-Jones. I thought his reminder for pastors to heed the nudge to pray is so relevant to all of us. Be mindful of the nudges to pray, don't put them off for a "better time."
"Always respond to every impulse to pray. The impulse to pray may come when you are reading or when you are battling with a text. I would make an absolute law of this – always obey such an impulse. Where does it come from? It is the work of the Holy Spirit (Phil 2:12-13). This often leads to some of the most remarkable experiences in the life of the minister. So never resist, never postpone it, never push it aside because you are busy. Give yourself to it, yield to it; and you will find not only that you have not been wasting time with respect to the matter with which you are dealing but that actually it has helped you greatly in that respect. You will experience an ease and a facility in understanding what you were reading, in thinking, in ordering matter for a sermon, in writing, in everything which is quite astonishing. Such a call to prayer must never be regarded as a distraction; always respond to it immediately, and thank God if it happens to you frequently." (Lloyd-Jones, David Martyn and Kevin De Young. Preaching and Preachers. Grand Rapids, Mich.: Zondervan, 2011, 170-171)