Simply it is premenstrual syndrome
.It typically occur about 5 to 11 days before a woman starts her monthly menstrual cycle. The symptoms usually stop when menstruation
begins, or shortly thereafter.For intractable pelvic pain ,take aspirin,ibuprofen or naproxen with anti ulcerate.And try danazole if you find breast tenderness unbearable.Consult a local doctor for dose schedule.
Last but not the least,as you sexually active,any sort of pelvic infection
is to be rule out.Do a ultrasonography