Waking up with a headache in perimenopause: common causes

Waking up with a headache in perimenopause usually points to something that happened overnight: sleep apnea, teeth grinding, caffeine withdrawal, alcohol, painkiller overuse or a migraine that started before you woke. Poor sleep from night sweats or insomnia is linked to it too. Most causes are treatable once you spot the pattern; a few warning signs need urgent care.

How common morning headaches are

Morning headaches are more common than most people think, and midlife women are among the most affected. In a telephone survey of 18,980 adults in the United Kingdom, Germany, Italy, Portugal and Spain, 7.6% reported chronic morning headaches. Rates were higher in women than in men (8.4% vs 6.7%) and peaked at about 9% between the ages of 45 and 64. Half of those who had them had been living with them for 42 months or more.

The same survey found which conditions traveled with morning headaches. The strongest links were with anxiety and depression together, major depression, insomnia and circadian rhythm problems. Sleep-related breathing disorders, high blood pressure, musculoskeletal conditions, use of anti-anxiety medication and heavy drinking were also linked. These are associations, not proof of cause, but they show where to look.

Why perimenopause can bring it on

Perimenopause does not cause morning headaches directly, but it stacks up several of the things linked to them:

• More broken sleep. Night sweats, 3 a.m. wake-ups and insomnia all become more common, and insomnia was one of the strongest links to morning headache in the survey above. Our guide to night sweats covers the most common culprit.
• Rising sleep apnea risk. Sleep apnea becomes more common in women after 40, and in women it is easily mistaken for menopause symptoms.
• Migraine changes. In a large US survey of women with migraine, 12.2% of perimenopausal women had headaches on 10 or more days a month, compared with 8.0% of premenopausal women. The more frequent the attacks, the more likely one is to be there when you wake.
• Mood changes. Anxiety and low mood can rise during the transition, and both were strongly linked to morning headaches.

The usual causes, one by one

Sleep apnea

Morning headache is a classic sign of obstructive sleep apnea, in which the airway narrows or closes many times a night. In a sleep clinic study, 33.6% of 462 people with sleep apnea reported morning headaches, compared with 8.9% of 101 people without it. Morning headaches were more common in women and in people with more severe apnea, and they resolved completely in 90% of those treated with CPAP.

The International Headache Society describes the typical sleep apnea headache: present on waking, often on both sides of the head, pressing rather than throbbing, without nausea or sensitivity to light and sound, and gone within 4 hours. It also notes that waking with a headache is not specific to apnea, which is why a sleep study, not the headache alone, makes the diagnosis. Our guide to sleep apnea in women after 40 explains the symptoms women tend to have and how testing works.

Teeth grinding and clenching

Sleep bruxism, grinding or clenching your teeth during sleep, is common: the American Academy of Sleep Medicine estimates that about 8% of young to middle-aged adults have it. Its signs include headaches, jaw muscle pain, tooth pain, sore gums, limited jaw movement and worn or damaged teeth. Many people only find out because a partner hears it or a dentist notices the wear. Stress and anxiety can bring it on, and cigarettes, alcohol or caffeine before sleep may increase it.

Caffeine withdrawal

If you drink caffeine every day, the overnight gap can be enough to trigger withdrawal. A review of 57 experimental studies found headache was the most common withdrawal symptom, affecting about half of regular users who stopped. Symptoms usually began 12 to 24 hours after the last dose, and stopping intakes as low as 100 mg a day produced them. A first coffee that comes later than usual, as it often does at weekends, can do the same. Our guide to caffeine in perimenopause covers timing and how much is reasonable.

Alcohol

Heavy drinking was linked to chronic morning headaches in the European survey. The American Academy of Sleep Medicine also notes that alcohol before sleep may increase teeth grinding. If your headaches are worse after nights you drink, that is a strong clue; see alcohol in perimenopause.

Medication-overuse headache

Taking painkillers or migraine medicines often can itself cause frequent headaches. The International Headache Society defines medication-overuse headache as headache on 15 or more days a month in someone with an existing headache disorder, after more than 3 months of regular overuse of acute headache medicine. The limits for each type of medicine are in our guide to headaches and migraines.

Migraine

An attack that starts overnight will be there when you wake. MedlinePlus describes migraine pain as throbbing or pounding, often on one side of the head, worse when you move, and often with nausea or sensitivity to light and sound. Women who get migraine often notice attacks becoming more frequent or less predictable in perimenopause; perimenopause and migraine covers why and how treatment fits with hormone therapy.

Hypnic headache (rare, usually after 50)

Hypnic headache is a rare condition in which headaches happen only during sleep and wake you up. The International Headache Society’s criteria require attacks on 10 or more days a month for more than 3 months, each lasting from 15 minutes to 4 hours after waking, without restlessness or the red, watery eye and runny nose of cluster headache. It usually begins after age 50. Before diagnosing it, clinicians rule out sleep apnea, high blood pressure at night, low blood sugar, medication overuse and problems inside the skull. Caffeine, lithium, melatonin and indomethacin have helped in reported cases, so it is worth a specialist visit.

Matching the pattern to the cause

What you notice	Likely cause	Next step
Pressure on both sides, gone within a few hours; snoring, gasping or daytime sleepiness	Sleep apnea	Ask about a sleep study
Sore jaw, tooth pain or worn teeth; a partner hears grinding	Sleep bruxism	See a dentist about a night guard
Eases soon after your first coffee; worse on late or skipped coffee days	Caffeine withdrawal	Keep caffeine steady and taper slowly
Worse after evening drinks	Alcohol	Drink less, earlier, or not at all
Headaches on most days and painkillers on many days	Medication-overuse headache	Count medicine days and talk to a clinician
Throbbing, with nausea or light sensitivity, sometimes around periods	Migraine	Review prevention and acute treatment
Wakes you at the same time most nights, new after 50	Possibly hypnic headache	See a clinician to rule out other causes
Follows nights of sweats or lying awake	Poor sleep	Treat the sleep problem

What helps

• Keep a two-week diary. Note bedtime, wake-ups, night sweats, alcohol, caffeine times, painkillers and headache details. The PeriSignal sleep diary handles the sleep side; add a headache line each morning.
• Get tested for sleep apnea if you snore, wake gasping, are sleepy during the day or have morning headaches with no clear trigger.
• See a dentist if you suspect grinding. The AASM notes that an oral appliance, usually fitted by a dentist, protects the teeth during sleep.
• Make caffeine consistent. Have your first cup at the same time every day, and if you want to cut back, reduce gradually rather than stopping at once.
• Move alcohol earlier or drop it, especially on nights before important mornings.
• Count your painkiller days. If you are near the limits, talk to a clinician before cutting back, because migraine prevention may be needed.
• Treat what is breaking your sleep. If night sweats or insomnia are behind it, treating them is likely to help the headaches as well.

Red flags and emergencies

Call 911 or go to an emergency room if the headache:

• comes on suddenly and is explosive or violent, or is the worst headache of your life
• comes with slurred speech, vision changes, weakness or trouble moving an arm or leg, loss of balance, confusion or memory loss

See a clinician promptly, the same day if you can, if:

• headaches are new and you are over 50, especially with vision problems, pain when chewing or weight loss
• a headache is worse each morning and comes with vomiting, double vision, or worsening when you cough, strain or change position
• you also have fever, a stiff neck, nausea and vomiting
• headaches get steadily worse over days or follow a head injury
• you have a history of cancer or a weakened immune system

MedlinePlus lists headaches that are worse on waking and come with vomiting among the possible signs of a brain tumor. Tumors are an uncommon cause of morning headache, but this combination should always be checked.

When to see a clinician

Book a visit if you wake with a headache on most mornings for more than two weeks, or if headaches are affecting your work or mood. Bring your diary and a list of every medicine and supplement you take. A sleep medicine specialist can test for sleep apnea and other sleep disorders, which are among the most treatable causes. If low mood or anxiety are part of the picture, mention them too. If you have thoughts of harming yourself, call or text 988.