20 Early Signs Your Body is Fighting Cancer

16. Unusually heavy or painful periods, bleeding between periods

Monthly menstruation symptom period concept. Close up calendar marking on menstruation period day and woman have stomach pain as background.
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A common sign of endometrial or uterine cancer. A transvaginal ultrasound should be considered if the problem persists.

17. A chronic cough or chest pain

Male asian athlete, has chest pain
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Leukemia and lung tumors (among others), show symptoms that can mimic a bad cough or bronchitis. Some patients also reported chest pain that extended to the shoulder and down their arms.