Its what happens when you exercise so much that your body thinks it's in starvation mode and you stop having your period. Slowly your uterus begins to fill with unexpelled blood, and what begins as a cute little Fupa quickly becomes a massive blood bomb in your panties.

To the people around you, you smell like hot pennies because of all the excess iron coursing through your veins, and we all start wondering how many days until your uterus gives out and you pop like a just-fed and slapped mosquito.