Period pain is a typical symptom of the menstrual cycle and is rather prevalent. It happens to most women at some point in their life. It typically manifests as excruciating stomach cramps that occasionally travel to the back and thighs. Sometimes the pain is sharp and spasmodic; other times it may be dull but more persistent. Painful periods are normal. However if one goes through extremely painful ones, one should visit a doctor and by his or her advice, take the medications accordingly.
I myself at times have experienced extremely painful periods and got a sigh of relief only after the prescribed medication which really does work well.