You may experience all or some of the following:

• You may feel tired to the point of exhaustion, and generally unwell.

• Pain may start 24 hours before your period begins, and last for about 36 hours.

• The pain may be crampy, or constant, or both.

• The pain may be felt in the tummy, lower back or down the inside of the thighs.

• There may be pain in the vagina as well.

• You may have other symptoms including headache, diarrhea and vomiting, bloating and mood changes.