Why Do I Wake Up With a Headache?

The alarm goes off, and before you open your eyes there’s a band across your forehead, or a dull pressure behind your eyes. You reach for the bottle on the nightstand. It happened Tuesday, and Thursday, and now it’s Saturday.

Sleep as a cause

Sleep apnea. The NHLBI¹ says symptoms in women often differ from the classic loud snoring, and that menopause symptoms like insomnia and fatigue can mask it. See sleep apnea in women.

Poor or short sleep. See trouble falling asleep and waking at 3 a.m..

Jaw clenching. Our article on grinding your teeth at night covers morning jaw and head pain.

Other common triggers

The NHS² lists a cold or flu, stress, drinking too much alcohol, bad posture, eyesight problems, not eating regular meals, not drinking enough fluids (dehydration), taking too many painkillers, and having your period or going through menopause, which it calls hormone headaches. See hormone changes in menopause and PMS.

The painkiller point matters for morning headaches. If you reach for painkillers on most days, the NHS² lists taking too many as a possible cause of headaches. Ask a pharmacist or clinician how often is too often.

What the NHS suggests

The NHS² suggests drinking enough fluids, resting, reducing stress and using over-the-counter pain relief as directed. It says to avoid skipping meals and not to sleep more than you usually would, and to limit screen strain and alcohol.

The play

Try this: a headache diary

For three weeks, write down the time you woke, the headache’s location and strength from 1 to 10, how long it lasted, what you took and how much.

Add the night before: bedtime, alcohol, caffeine, snoring or waking, and where you are in your cycle.

If you have a partner, ask whether they’ve heard snoring or pauses in your breathing.

When to get checked

Don’t wait if

1. Emergency

   Get emergency care for a sudden severe headache, a headache after a blow to the head, or one with fever, confusion or loss of consciousness, vision problems, weakness or numbness, trouble speaking or a stiff neck. Harvard Health and the NHS² both list these.

The NHS² says to book an appointment if you’ve tried treating a headache yourself and it’s not getting better or is getting worse, or if headaches recur. Harvard Health Publishing³ says to see your doctor if you’re having headaches frequently, if they interfere with your ability to function, or if you have an existing headache pattern that changes. It lists a relentless headache when you were previously headache-free, and a headache that is incapacitating, as concerning patterns.

Book an appointment if any of these fit:

• Morning headaches keep coming back
• They’re getting worse, or the pattern is changing
• They interfere with work or daily life
• You take painkillers for them on most days
• You also snore, wake unrefreshed or feel exhausted all day
• Self-care hasn’t helped

A headache that greets you every morning is a message, and it’s one worth tracing to its source.