Allow me to quote from Arturo Azurdia’s Spirit Empowered Preaching (p126):

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In a manner of speaking, [the preacher] can say, a la Eric Liddel, “When I preach I feel His pleasure.”  However, it is also importrant to acknowledge that there are occasions when, to the preacher, the presence and power of the Spirit of God seem absent in any sensible way.  Distraction rules his mind.  Words come slugglishly.  Passion seems forced.  It is not uncommon for the gospel preacher to feel as though he has failed miserably in his attempt to deliver the word of God. On not a few Sunday afternoons I have been filled with such deep personal disappointment I have declared to my wife that I will never preach again.  One seasoned preacher has said aptly:

The pulpit calls those anointed to it as the sea calls its sailors, and like the sea it batters and bruises and does not rest.  To preach, to really preach, is to die naked a little at a time, and to know each time you do it that you must do it again.

To be sure, there will be Sundays when the man of God will have no sense of the operation of the Holy Spirit in his preaching.  Nevertheless, he must learn that any lack of the Spirt’s ‘felt presence’ on his part is not the infallible barometer of divine work among the congregation.

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How true this is.  We must learn not to measure the work of the Spirit by the feelings we have after going through the experience of preaching.  Nevertheless, let’s not swing to the other extreme and neglect all awareness of feelings.  It is easy to become mechanical in an attempt to avoid being driven by emotionalism.  Surely the God who made us as heart-driven creatures in His own image longs for us to know the fullness of every life experience, including preaching, with feelings engaged rather than disengaged.  Don’t trust the feelings in judging the work of the Spirit through your preaching.  Equally don’t neglect the feelings, part of which are designed to function in our personal engagement with a loving God who pours out His love into our hearts by the Spirit whom He has given to us.

Some preachers are too easily swayed by battered and confused feelings.  Others act like robots, dutifully resisting all things affectionate.  Let’s be truly engaged with God at the heart level, pouring out our ministry as a fragrant offering to Him, experiencing the rollercoaster times and the calm times, loving God with all our hearts, and mind, and bodies, and loving others fully too.