I experienced this before, and for a long time, have worn boxer briefs because of this (no problems with boxer briefs). Recently picked up some briefs - same brand, same size as my boxer briefs. And just like in the past, my balls are experiencing some mild discomfort, and I feel like I need to take a dump. Anyone else notice this? I assume it's the increased pressure on the balls that causes both the testicular discomfort as well as the urge to have bowel movement.