Can dyspepsia cause diarrhea?

Well...... several possibilites. I cannot say in your particular case. Irritable bowel can certainly cause both http://www.nerdpocalypse.net/irritable%20bowel.html this explains it more fully. And medications taken for it certainly cause diarrhea (magnesium containing antacids). follow the podcast at https://itunes.apple.com/us/podcast/epiphany-of-the-week/id972173760.