I had back pain often since I started working. Long story, I read a small book, Mind Over Back Pain, by Dr. Sarno, and my back never bothered me again, until we found out my wife had cancer.
We were rushing for an appointment with the surgeon. But before we left I picked something up and suddenly bad back pain. I told myself there is nothing structurally wrong with my back, so in pain I got to the car and by the time we got there, the pain was gone.
