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Luteal phase

Period Flu (Feeling Sick Before Period)

Some people experience flu-like symptoms before their period — including body aches, fatigue, nausea, chills, and headaches. This is sometimes called 'period flu', though it is not an official medical term.

Medical disclaimer

This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Dawn Phase is not a medical device. Always consult a qualified healthcare professional with questions about your health.

What causes it

Hormonal shifts before your period, particularly changes in prostaglandins, may trigger inflammation and symptoms that mimic illness. It is not caused by a virus.

How to track it

Note the timing, duration, and severity of symptoms each cycle. If they consistently appear in the days before your period, they are likely hormonally driven.

When to see a doctor

If symptoms are severe, interfere with daily life, or you are unsure whether they are cycle-related, speak with your doctor to rule out other causes.

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This content is for informational purposes only and is not a substitute for professional medical advice.