Hi, I Am 20 Years Old, A Female, I Am

Hi, i am 20 years old, a female, i am 5 feet 4 inches tall and i weight 50kg. I have been having extremely painful dysmenorrhea, i started menstruating at the age of nine. I have tried heating pads, exercise and even reducing my sugar intake but nothing works. The pain is usually accompanied with nausea, diarrhoea, fatigue, dizzy spells. what can i do.