Abnormal menstruation

Dear Ask The Doctor: My menstruation was 15 days late. i have always been regular so far. today is my 12 day of heavy bleeding with clots. i am a flight attendant for 14 years and 41 years old. please advice

Dear Gs: This irregularity at most times is related to stresses, tension, ingested medications and caffeine. Remember that fluctuation in periods indicates the beginning of disturbance in the natural chain of hormonal events that manage menstruation. Hope this helps.