"Painful cramps" refers to the uncomfortable and sharp contractions or spasms in muscles, especially in the abdomen, which can cause intense pain and discomfort. Full definition
A little over a decade ago, I personally started experiencing painful cramps several days (and sometimes weeks) before my period. (thecouplescenter.org)
A Cochrane Review of clinical trials suggests that magnesium supplements may, in fact, provide relief for dysmenorrhea — the formal term for painful cramping during menses — without any significant adverse events. (mindbodygreen.com)
It is also good to keep a hot water bottle or a heating pad around to reduce painful cramping. (babygaga.com)