Migraine is far more than a bad headache. It’s a neurological event that unfolds in distinct phases, each with its own set of signs. The pain itself is typically one-sided and pulsating, lasts 4 to 72 hours, and comes with nausea, light sensitivity, or both. But many of the most telling signs show up before the pain starts, or even without any head pain at all.
Early Warning Signs: The Prodrome
One to two days before a migraine, your body often sends subtle signals that something is coming. These early signs are easy to dismiss individually, but together they form a recognizable pattern. Common prodrome symptoms include food cravings, neck stiffness, increased thirst and urination, mood swings (ranging from depression to unusual euphoria), constipation, and frequent yawning. Many people who track their migraines learn to recognize these early warnings and use them as a cue to act, whether that means adjusting their schedule, staying hydrated, or taking medication early.
Aura: Sensory Disturbances Before the Pain
About one in four people with migraine experience aura, a wave of sensory disturbances that typically starts 5 to 60 minutes before the headache. Visual aura is the most common type. It usually begins near the center of your vision and spreads outward, producing blind spots (sometimes outlined by a circle or geometric shape), zigzag lines that drift across your field of view, shimmering spots, flashes of light, or temporary vision loss.
Aura isn’t limited to vision. Some people feel tingling that starts in one hand or on one side of the face and slowly travels along an arm or leg, eventually turning to numbness. Tingling in the tongue or mouth is another less well-known sign. In rare cases, aura can cause temporary difficulty speaking or weakness on one side of the body. These symptoms can be alarming, but they’re typically reversible and fade before or shortly after the headache begins.
The Headache Phase
The headache itself is what most people associate with migraine, and it has specific characteristics that set it apart. Clinically, a migraine headache meets at least two of the following: pain on one side of the head, a pulsating or throbbing quality, moderate to severe intensity, and worsening with routine physical activity like walking or climbing stairs. Most migraines are one-sided, though they can affect both sides or switch sides between episodes.
Alongside the pain, at least one of the following is present: nausea (with or without vomiting) or sensitivity to both light and sound. Nausea is the most common migraine symptom after the headache itself. Many people also become sensitive to smells during an attack. Untreated, a migraine headache lasts anywhere from 4 to 72 hours in adults. In children and adolescents, attacks can be shorter, lasting as little as 2 hours.
How Migraine Differs From a Tension Headache
Tension headaches produce mild to moderate pain that feels like pressure or a tight band around your head. They’re uncomfortable, but they don’t typically cause nausea, and the pain isn’t throbbing. Migraine pain is more intense, more likely to be one-sided, and gets worse with movement. If your headache makes you want to lie down in a dark, quiet room, that’s a strong sign it’s a migraine rather than a tension headache. The presence of nausea, vomiting, or sensitivity to light and sound further points toward migraine.
Migraine Without Head Pain
Some people experience all the neurological symptoms of migraine, including aura, nausea, and light sensitivity, without ever developing a headache. This is sometimes called silent migraine. Visual disturbances like zigzag lines, blind spots, and flashing lights appear and resolve on their own, often leaving behind fatigue or difficulty concentrating. Silent migraines are more common in people who had typical migraines earlier in life and can be confusing to recognize because the hallmark symptom (the headache) is absent.
Vestibular Migraine: When Dizziness Is the Main Sign
Not all migraines center on head pain. Vestibular migraine primarily causes vertigo, unsteadiness, and sensitivity to motion. Episodes of dizziness can last anywhere from minutes to days and may or may not come with a headache. People with vestibular migraine almost always have a history of motion sensitivity (like car sickness) going back to childhood, along with migraine headaches at some point in their life, even if those headaches stopped years ago. Nausea and vomiting are common during episodes, making vestibular migraine easy to mistake for an inner ear problem.
The Postdrome: Migraine “Hangover”
After the headache fades, most people aren’t immediately back to normal. The postdrome phase, often called a migraine hangover, can last a few hours to two full days. Symptoms during this phase include fatigue, body aches (especially a stiff neck), difficulty concentrating, lingering nausea, light and sound sensitivity, dizziness, and mood changes. You may feel foggy, sore, or wiped out for up to 48 hours after the pain itself is gone. This phase is often overlooked, but it’s a real part of the migraine cycle and can be just as disruptive as the headache.
When Migraines Become Chronic
Episodic migraines can, over time, become more frequent. Chronic migraine is defined as headache on 15 or more days per month for more than three months, with at least 8 of those days having migraine features. At this frequency, the line between one attack ending and the next beginning can blur. Migraine generally affects people between their mid-30s and mid-40s most heavily and is significantly more common in women, likely due to hormonal factors. It most often begins around puberty.
Recognizing the full range of migraine signs, from early food cravings and yawning through the postdrome fog, helps you identify patterns, communicate clearly with a doctor, and start treatment earlier in the cycle when it’s most effective.