John MacArthur gave 2 sermons about blaspheming the Holy Spirit, available free both in writing and mp3 for listening (click on download near the top of the page) here:
http://www.gty.org/Resources/Sermons/2292
http://www.gty.org/Resources/Sermons/2293
Hope you feel better soon!
Thanks very much for those links, Mr. Rogers. I will take a look at those.