What you may have experienced, is the popping of a spinal disc that has popped out and back in which may be causing your pain. That are has to be checked for dislocated and / or pinched nerves. If so and how many there are, those nerves would need to be resetted by a specialist in alternative medicine techniques. Meanwhile, use a heating pad on your back and lay on it. If that area is inflamed, you should use one of my natural remedies which is called EGG PLASTER to take the swelling down and some of the pain will go away.