Last updated: 2026-09-18
Is a headache that follows flashing lights in front of the eyes a migraine?
People who dim the lights and avoid noise when one side of the head throbs often wonder whether flashing lights and nausea belong to the same headache. If one side of the head throbs with a pulsing quality while nausea sets in and even ordinary light or soft sound becomes unbearable enough to send you looking for a dark room, migraine is the more likely cause. Along with the character of the pain, doctors check how many hours a single attack lasts and whether everyday movement, like walking or climbing stairs, makes the pounding worse.
An illustration recreating a visual aura. A shimmering zigzag line appears on one side of the visual field, gradually expands, and then disappears before the headache begins. This is a depiction based on public materials, not an actual patient's image. (Tehom, Public domain)
Tension-type headache, the kind most people experience day to day, tends to feel like a band tightening around both sides of the head or a dull, heavy pressure. It doesn't usually worsen with ordinary activity such as climbing stairs, and nausea or vomiting rarely accompany it. Sensitivity to either light or sound alone can occur occasionally, but a strong reaction to both together, combined with nausea, points much more toward migraine. The name "migraine" leads many people to assume only one side of the head can hurt, but the location of the pain alone doesn't distinguish between the two conditions (Robbins Matthew S, 2021).
Migraine involves more than head pain; it moves through several stages of neurological change. Hours to a day before the headache itself begins, a prodrome phase may appear, bringing fatigue, frequent yawning, or a stiff neck. This can be followed by an aura, a brief disturbance in vision or sensation, then the intense headache phase, and afterward a postdrome period in which the whole body may feel drained and foggy even after the pain has eased (Dodick David W, 2018).
Not everyone goes through these stages in order, and prodrome symptoms like yawning or trouble concentrating should be considered separately from aura, which involves sensory disturbances. A classic sign of migraine with aura is a zigzag flash of light that appears at the edge of the visual field and gradually expands, or a blurred patch in the center of vision, followed by a throbbing headache. However, aura occurs in only some patients, and the absence of visual disturbance doesn't rule out the same underlying headache.
Why does aura occur, and how is it distinguished from stroke?
The main mechanism behind aura is known as cortical spreading depression. Excitation among neurons and glial cells in the cerebral cortex spreads slowly across the brain's surface like a wave, followed by a period of suppressed neural activity. When this wave passes through the visual cortex at the back of the brain, it can produce flashing lights or blind spots in the visual field. Afterward, the trigeminovascular system, which surrounds the blood vessels of the brain, becomes activated, triggering neurogenic inflammation and vascular changes that lead to the throbbing, pulsing pain (Dodick David W, 2018).
A typical aura doesn't appear all at once. It spreads gradually across the visual field over roughly 5 minutes. Individual aura symptoms, whether visual or sensory, generally last between 5 and 60 minutes before resolving completely. When several aura symptoms occur one after another (for example, visual changes followed by tingling in the fingers or speech difficulty), the total duration can extend beyond an hour.
Vision loss or abnormal sensations in the limbs understandably raise concern about stroke or transient ischemic attack. Stroke, caused by a blocked or ruptured blood vessel in the brain, often produces visual field loss, slurred speech, or weakness suddenly and without warning. However, some cerebrovascular conditions can also produce symptoms that spread over several minutes or appear briefly and then resolve, so aura and stroke symptoms can overlap. Even if symptoms clear up completely within tens of minutes, cerebrovascular disease still needs to be ruled out separately.
A sudden, thunderclap-level headache that strikes like a bolt of lightning, clear limb weakness or slurred speech, decreased consciousness, or neck stiffness together with high fever all call for immediate emergency care. A severe headache experienced for the first time after age 50, or a new type of pain that suddenly worsens with coughing, exercise, or a change in posture, are also warning signs that require further evaluation (Robbins Matthew S, 2021).
Doctors ask in detail about exactly when symptoms began and how quickly they spread, then examine cranial nerve function, cerebellar function, and motor and sensory nerves in turn to rule out a dangerous secondary cause. If the neurological exam raises suspicion of a secondary brain condition, prompt referral is made to a facility equipped for brain MRI. Even when the exam is normal, symptom progression continues to be monitored.
Does migraine change during menopause?
Many women in the perimenopausal period, roughly the late 40s to early 50s, find that headaches become much more frequent and severe than before. As estrogen levels swing unpredictably instead of following a stable cycle, the nervous system can become more sensitive, and migraine attacks may increase in frequency. For some women, attacks gradually ease once menopause is complete and hormone levels stabilize, but the timing varies from person to person (Bernstein Carolyn et al., 2020).
If hot flashes or sleep disturbances accompany frequent headaches, it helps to carefully compare recent changes in the menstrual cycle, any past use of hormonal medication, and the timing of headache attacks. A headache diary is a valuable tool here: recording the date and duration of each headache, whether an aura with flashing lights occurred, possible triggers such as sleep deprivation or certain foods, and how many days pain medication was taken.
Women who experience migraine with aura are reported to have a somewhat higher relative risk of stroke compared with those without aura, though the absolute risk remains low. For this reason, doctors first check for vascular risk factors such as high blood pressure, smoking, or high cholesterol. High-dose combined oral contraceptives, taken by younger women for birth control, and low-dose menopausal hormone therapy, used to manage menopausal symptoms, differ completely in composition, dosage, route, and purpose, so they aren't grouped together under the same vascular risk.
Whether to start menopausal hormone therapy is decided by weighing multiple factors (hot flashes, mood symptoms, cardiovascular risk factors, and the presence or absence of aura) against the potential benefits and risks. During menopause-related visits, doctors ask not only about hormone-related symptoms like flushing and sweating but also about neurological symptoms such as insomnia and headache.
When should preventive treatment begin?
Migraine treatment falls into two broad categories: acute treatment, aimed at stopping pain quickly once an attack hits, and preventive treatment, aimed at reducing the frequency and intensity of attacks ahead of time to limit disruption to daily life (Robbins Matthew S, 2021). Anti-inflammatory pain relievers, triptans, and newer gepant-class drugs taken during an attack are acute treatments meant to relieve pain, nausea, and vomiting that have already begun. Preventive treatment, by contrast, involves taking medication regularly or undergoing periodic procedures to lower the overall excitability of the nervous system.
Preventive treatment is generally recommended for people who experience headaches on 1 to 2 or more days per week, or whose attacks, even if less frequent, are severe enough to interfere with work or school. Preventive treatment is also considered when acute pain medication fails to relieve symptoms adequately, when side effects prevent a patient from taking the medication, or when there's concern about medication dependence from taking pain relievers too often.
Because triptans, a common class of prescription acute-treatment medication, constrict blood vessels in the brain, a thorough medical history is essential before use. Triptans are contraindicated in patients with coronary artery disease such as angina or heart attack, a history of stroke, peripheral vascular disease, or severe uncontrolled high blood pressure. In patients with well-controlled mild hypertension or simple cardiovascular risk factors, triptans can be prescribed after checking cardiovascular status.
Several preventive options are now used clinically, including anti-CGRP (calcitonin gene-related peptide) targeted antibody injections, non-drug neuromodulation techniques that regulate nerve stimulation, and cognitive behavioral therapy (Ailani Jessica et al., 2021). Simply increasing pain medication as attacks become more frequent can backfire, leading to medication overuse headache, in which headaches actually worsen. Medication overuse headache should be suspected if someone with an existing headache disorder experiences headaches on 15 or more days per month for over 3 months while taking triptans or combination analgesics on 10 or more days per month, or simple anti-inflammatory pain relievers on 15 or more days per month (Ashina Sait et al., 2023). If pain medication only provides brief relief while the underlying pain intensity keeps increasing, it's time to gradually taper the medication and shift toward preventive treatment.
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Many people with migraine also notice tightness in the back of the neck, shoulders, and jaw along with the throbbing pain. When evaluating chronic headache, doctors look not only at the nervous system's response but also at the alignment of the upper cervical spine and jaw joint, along with tension in neck muscles including the suboccipital muscles. Checking whether headache recurs with head-turning or jaw movement, and whether pressing on specific neck or jaw muscles triggers pain radiating to the head, helps determine whether cervicogenic factors or temporomandibular joint (jaw joint) dysfunction are contributing alongside migraine. Misalignment in the jaw or neck isn't treated as a cause of aura itself, but rather as a factor that can intensify attacks.
When jaw joint dysfunction and neck tension are identified as factors that trigger attacks and lower the pain threshold, manual therapy targeting the jaw joint and cranial nerves, along with radiofrequency Winback treatment, may be applied. These approaches work to release tension in the chewing muscles around the jaw and the fascia of the upper neck, reducing excessive sensory input to the brain and helping restore comfortable range of motion in the neck and shoulders. For patients whose nervous system has become so sensitized that even minor stimuli trigger pain, Nerve Spa, which uses microcurrent, may be added to help calm the autonomic nervous system and support overall relaxation.
A meta-analysis of clinical studies in patients with chronic migraine found that combining physical therapy and rehabilitative exercise with medication was associated with reduced headache frequency and pain intensity (Onan Dilara et al., 2023). Manual therapy and relaxation-based care provided in clinical settings are considered part of this broader rehabilitative approach, used alongside medication.
Among non-drug neuromodulation options, a randomized controlled trial of single-pulse transcranial magnetic stimulation (TMS) in patients with migraine with aura found that 39% of those who received active stimulation were pain-free at 2 hours, compared with 22% in the sham stimulation group (Lipton Richard B et al., 2010). This study used a protocol with a portable single-pulse device. In-clinic TMS devices allow stimulation site and number of sessions to be tailored to headache type and patient condition.
The clinic has TMS equipment available, and the decision to apply TMS treatment is made during the consultation based on the patient's headache frequency, response to existing medications, aura pattern, and neurological status. Treatment is applied selectively after confirming safety criteria and ruling out contraindications.
Jumin Kim · Medical Director · THE WELLS Jamsil
References
- Robbins Matthew S (2021). Diagnosis and Management of Headache: A Review.. JAMA. PMID: 33974014
- Dodick David W (2018). A Phase-by-Phase Review of Migraine Pathophysiology.. Headache. PMID: 29697154
- Bernstein Carolyn, O'Neal Mary A (2020). Migraine and menopause - a narrative review.. Menopause (New York, N.Y.). PMID: 32796291
- Ailani Jessica, Burch Rebecca C, Robbins Matthew S, (2021). The American Headache Society Consensus Statement: Update on integrating new migraine treatments into clinical practice.. Headache. PMID: 34160823
- Ashina Sait, Terwindt Gisela M, Steiner Timothy J, Lee Mi Ji, Porreca Frank, Tassorelli Cristina (2023). Medication overuse headache.. Nature reviews. Disease primers. PMID: 36732518
- Onan Dilara, Ekizoğlu Esme, Arıkan Halime (2023). The Efficacy of Physical Therapy and Rehabilitation Approaches in Chronic Migraine: A Systematic Review and Meta-Analysis.. J Integr Neurosci. PMID: 37735140
- Lipton Richard B, Dodick David W, Silberstein Stephen D, Saper Joel R, Aurora Sheena K, Pearlman Starr H (2010). Single-pulse transcranial magnetic stimulation for acute treatment of migraine with aura: a randomised, double-blind, parallel-group, sham-controlled trial.. The Lancet. Neurology. PMID: 20206581
Frequently Asked Questions
Q. Can migraine occur on both sides of the head?
Migraine can occur on both sides of the head, so pain location alone shouldn't be used to conclude it's tension-type headache. Doctors ask about accompanying symptoms and how pain changes with daily activity to distinguish between the two. Source
Q. Can visual aura occur without a headache following it?
Yes, visual aura can occur without a subsequent headache in some cases. However, a first-time episode of flashing lights should not automatically be assumed to be migraine aura; other neurological or eye conditions need to be ruled out first. Source
Q. Can migraine and tension-type headache occur on different days in the same person?
Yes, the same person can experience both types of headache on different days. Recording the pattern of pain, accompanying symptoms, and medications taken on each headache day helps clinicians distinguish between the two and plan treatment accordingly. Source
Q. Can fatigue and difficulty concentrating persist after the headache itself has ended?
Yes, postdrome symptoms such as fatigue or difficulty concentrating can linger even after the pain has subsided. Noting both when the pain ended and when normal activity resumed helps describe to a clinician how long the headache disrupted daily life. Source