Why am I exhausted during my period?
Answered by the AskDoc Medical Team · Medically reviewed under our Medical Director, MBBS
The hormone trough plus disturbed sleep plus cramping pain is tiring by itself, and that fatigue lifts within days.
The pattern to respect: exhaustion that deepens month after month in someone with heavy periods is iron deficiency until proven otherwise, and a ferritin test proves it either way. Iron loss from heavy cycles is the most missed diagnosis in tired young women.
Gentle movement, iron-rich food, and honest tracking of flow alongside energy give the appointment substance when you book it.
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Only after a blood test
If a blood test shows low ferritin, iron tablets rebuild your stores over three to six months. Do not self-dose without the test: in men and women past menopause, low iron needs its cause found first, because it can signal hidden bleeding.
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