Since your pain moves around, it doesn't sound like shingles. It is possible (but not common) to have shingles without a breakout of lesions. The pain goes from the center of the body in front, around the side of the body to the spinal column in back, and the part of the body afttected depends on which spinal nerve the virus came from, in an area called a dermatome. The pain lasts in that area due to damage caused by the virus as it came down that nerve and damaged the underlying sensory nerves. Sometimes there is lingering pain called postherpetic neuralgia after a breakout of shingles has healed. It is treated with pain relievers, antidepressants, and other means.