It’s normal for people with vaginas in their teens and 20s to have slightly longer cycles, for people in their 30s to have shorter cycles, and for people in their mid-40s to 50s to have shorter cycles still. [2] X Research source If yours varies wildly from month to month and you’ve had your period for longer than two or three years, it would be a good idea to see a doctor to make sure that you’re not suffering from hormonal imbalances.

Irritability Mood swings and sudden crying Minor headaches Stomach aches Cramping in stomach, legs, or back Changes in appetite Cravings for particular tastes or foods Acne outbreaks Tender breasts Feeling tired or sleepy Back or shoulder pains

Pelvic organ problems like imperforate hymen or polycystic ovary syndrome[6] X Research source Irritable bowel syndrome Liver disease Diabetes Eating disorders like anorexia and bulimia Obesity Tuberculosis