A migraine isn’t just a bad headache. It’s a distinct neurological event with specific characteristics: pulsating pain (often on one side of the head), moderate to severe intensity, sensitivity to light and sound, and nausea. If your headache gets worse when you walk up stairs or bend over, and it comes with at least one of those accompanying symptoms, you’re likely dealing with a migraine rather than an ordinary headache.
The Core Features That Separate Migraine From Other Headaches
The most common type of headache, a tension headache, feels like a dull, pressing band around your entire head, sometimes described as a “hatband” or vise-like sensation. It’s mild to moderate, bilateral (both sides), and doesn’t get worse when you move around. You can usually push through your day with one.
Migraine pain behaves differently in almost every way. About 60% of migraine sufferers feel it on one side of the head, though it can affect both sides. The pain pulses or throbs rather than pressing steadily. It’s moderate to severe, often enough to stop you from functioning normally. And here’s one of the most reliable distinguishing features: routine physical activity like walking, climbing stairs, or even bending over makes migraine pain noticeably worse. If you instinctively want to lie still in a dark room, that’s a strong signal.
Beyond the pain itself, migraines bring additional symptoms that tension headaches don’t. Nearly 65% of migraine sufferers report all three of the cardinal accompanying symptoms: nausea, light sensitivity, and sound sensitivity. Light sensitivity is the single most bothersome symptom for about half of people with migraine, followed by nausea (28%) and sound sensitivity (23%).
The Four Phases of a Migraine
One reason migraines feel so different from regular headaches is that they unfold in stages. Not everyone experiences all four, but recognizing the pattern can help you identify what’s happening early.
Prodrome
One to two days before the headache hits, you may notice subtle warning signs: food cravings, mood shifts (from low to unusually upbeat), neck stiffness, increased thirst, frequent urination, excessive yawning, or constipation. These symptoms are easy to dismiss individually, but when they cluster together before a headache, they’re a useful early signal.
Aura
About 25% of people with migraines experience aura, a set of temporary neurological disturbances that typically build gradually over several minutes and last 20 minutes to an hour. Visual aura is the most common type. It often starts as a small blind spot or the appearance of bright zigzag lines or shimmering shapes in your visual field, which then expands across one side of your vision. Some people experience tingling in a hand or arm, or on one side of the face and tongue, followed by numbness. Less commonly, aura can involve temporary difficulty speaking or hearing changes.
Aura usually comes before the headache phase, but it can overlap with it. If you’ve never had aura before and suddenly experience vision loss, numbness, or trouble speaking, treat it as a medical emergency until proven otherwise, since these symptoms can also indicate a stroke.
Attack
The headache phase lasts 4 to 72 hours without treatment. In children and teenagers, it can be shorter, sometimes as brief as 2 hours. During this phase, the throbbing pain, nausea, and sensory sensitivities are at their peak.
Postdrome
After the pain resolves, many people feel drained, foggy, or washed out for up to a day. Some describe it as a “migraine hangover.” Sudden head movements can briefly trigger pain again. A smaller number of people feel unexpectedly euphoric during this phase.
A Simple Checklist
Doctors use specific criteria from the International Headache Society to diagnose migraine. You can apply the same logic at home. Your headache is likely a migraine if it meets most of these conditions:
- Duration: lasts 4 to 72 hours without treatment
- Pain quality: has at least two of these features: one-sided location, pulsating or throbbing quality, moderate to severe intensity, or gets worse with routine physical activity
- Accompanying symptoms: includes at least one of these: nausea or vomiting, or both light sensitivity and sound sensitivity
- Pattern: you’ve had at least five episodes like this
You don’t need to check every single box. Roughly 40% of migraine sufferers have pain on both sides, and some attacks throb less than others. The overall pattern matters more than any single feature.
Common Triggers to Track
If you’re trying to confirm whether your headaches are migraines, keeping a trigger diary can reveal telling patterns. The most well-established migraine triggers include hormonal fluctuations (especially drops in estrogen before or during menstrual periods, during perimenopause, or with hormonal contraceptives), stress, sleep changes (too much or too little), skipped meals, weather shifts, alcohol (particularly red wine), excess caffeine, bright or flickering lights, strong smells, and certain foods like aged cheeses and processed meats.
Migraines are significantly more common in women, likely because of hormonal influences. If your headaches cluster around your menstrual cycle and come with nausea or light sensitivity, that’s a particularly strong indicator.
Episodic vs. Chronic Migraine
If you have headache days on fewer than 15 days per month, that’s classified as episodic migraine. Once you cross the threshold of 15 or more headache days per month for at least three months, with at least 8 of those days meeting migraine criteria, it becomes chronic migraine. This distinction matters because treatment approaches differ, and chronic migraine can develop gradually from episodic migraine, especially if attacks are undertreated or if pain medications are overused.
Headache Warning Signs That Need Urgent Attention
Most headaches, including migraines, aren’t dangerous. But certain features signal something more serious. Seek immediate medical care for any of the following:
- Thunderclap headache: a severe headache that reaches maximum intensity within one minute. This can indicate bleeding in the brain.
- Headache with fever, stiff neck, or confusion: may point to an infection like meningitis.
- New neurological symptoms: sudden weakness, vision loss, slurred speech, or confusion alongside a headache.
- First severe headache after age 65: new-onset headaches later in life have a higher chance of being caused by something serious.
- A headache pattern that has changed: a headache that feels fundamentally different from your usual headaches, or one that has been progressively worsening over weeks.
- Headache triggered by coughing, sneezing, or straining: can occasionally signal structural problems at the base of the skull.
- Positional headache: pain that appears within seconds of standing up and resolves when lying flat may indicate low spinal fluid pressure.
If your headaches follow a consistent, recognizable pattern, respond to rest or treatment, and match the migraine profile described above, you’re almost certainly dealing with migraines rather than something more concerning. The single most useful step you can take is to write down the details of your next few headaches: when they started, how long they lasted, where the pain was, what it felt like, what made it worse, and what other symptoms came along. That record gives both you and your doctor the clearest possible picture.