It isn't too uncommon especially as your mileage goes up. However, if you consistently miss month after month and you are not pregnant, this is definitely something you will want to talk with your doc about because your risk for osteoporosis (therefore stress fractures, too) increases tremendously.
I would definitely see a doctor, but it is pretty common, esp. if you've recently ramped up your exercise. I stopped getting a period in May '08 (I'm on the pill, but would always have a regular period) when I really increased my mileage. I discussed with my doctor and she was not concerned.
"Success is not final, failure is not fatal; it is the courage to continue that counts" - Winston Churchill
Ok, So I have tried asking other people, but no one I have asked has had this problem. So, has anyone while training for a marathon ever missed a period? I have taken a pg test,it was negative, plus my DH had that taken care of over a year ago, so I am just wondering how common this is, how I fix it, and how bad it is on my body to skip. Also, do I have to go see a doctor?
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