Kidney Stones. The most searing pain and feeling of helplessness I have ever experienced. It starts off like a bowel cramp, but steadily increases till one's eyes are rolling back. The pain makes you want to try and stretch or massage the kidney area.

My attack came on at work and I had to drive 20 miles to get home. My ass was literally in the passenger seat with my left foot on the gas doing 80. When I got home, I was soaked with sweat and literally fell out of the car and crawled inside the house. The only thing that helped was 2 morphine shots.