 [ Symptoms ] i am healthy 51 y o who is gone over a year wo a period 3 times each time with 1 normal period how common is this  i have no risk factors for any type of gynecological cancers other than i am female i have never used hormones other than thyroid for hypothyroidism since age 42 my bmi is 21 [ Disease ] hi have you thought of the menopause if not just go to your doctor and get a simple hormone blood test this will tell you just were you are with your hormones which is a good sign of if your in your menopause do hope this helps you good luck