The simplest way to tell a migraine from a regular headache is this: migraines come with more than just head pain. If your headache brings nausea, sensitivity to light, or makes you unable to function normally, there’s a strong chance it’s a migraine. A standard tension-type headache, by contrast, feels like a dull, pressing band around your head and generally doesn’t stop you from going about your day.
That distinction matters because the two conditions have different causes, respond to different treatments, and signal very different things about what’s happening in your brain.
What a Tension-Type Headache Feels Like
Tension-type headaches are the most common headache, reported by more than 70% of some populations. The pain is typically mild to moderate, pressing or tightening (not pulsating), and felt on both sides of the head. You might describe it as a tight band wrapped around your forehead or pressure at the temples and back of the skull.
The key feature of a tension-type headache is what it doesn’t do. It doesn’t make you nauseous. It doesn’t make light or sound unbearable. Walking up stairs or doing household chores doesn’t make it worse. You can generally push through your day, even if you’d rather not. These headaches can last anywhere from 30 minutes to several days, though most resolve within a few hours. Common triggers include stress, poor sleep, dehydration, eye strain, and muscle tension in the neck and shoulders.
What a Migraine Feels Like
A migraine is a neurological event, not just a bad headache. It unfolds in up to four distinct phases, and head pain is only one of them.
The first phase, called prodrome, can start hours or even days before the pain hits. You might notice unusual fatigue, food cravings, frequent yawning, irritability, neck stiffness, or trouble concentrating. These early warning signs are easy to dismiss, but many people learn to recognize them over time.
About one-third of people with migraine experience aura, the second phase. Aura typically involves visual disturbances: flashing lights, zigzag patterns, shimmering spots, or temporary blind spots. Some people feel tingling or numbness in their face or hands, and a smaller number have difficulty speaking clearly. Aura symptoms usually build gradually over about five minutes, last up to 60 minutes, and then fade as the headache phase begins.
The headache itself lasts 4 to 72 hours if untreated. The pain is moderate to severe, often pulsating or throbbing, and frequently concentrated on one side of the head (though it can affect both). Physical activity makes it worse. Simple things like walking, bending over, or climbing stairs can intensify the pain. Alongside the head pain, you may experience nausea or vomiting, and heightened sensitivity to light, sound, and even smell.
After the pain subsides, roughly 80% of people with migraine enter a postdrome phase, sometimes called a “migraine hangover.” This can bring fatigue, body aches, difficulty concentrating, and lingering light sensitivity for hours or even a full day afterward.
A Quick Self-Check
If you’re not sure which type of headache you’re dealing with, three questions can help clarify things. In the past three months: Do your headaches interfere with your ability to function, causing you to miss work, school, or family activities? Do you feel nauseous during a headache? Do you become sensitive to light? Answering yes to two of these three questions means there’s a 93% chance you have migraine. Yes to all three raises that to 98%.
Why Migraines Are Often Misdiagnosed
One of the most common mix-ups is between migraine and sinus headache. Because the nerves activated during a migraine are the same ones that supply the sinuses, eyes, and ears, a migraine can produce nasal congestion, a runny nose, and watery eyes. About 45% of people with migraine report at least one of these symptoms during an attack. That’s why so many people reach for sinus medication when they actually have a migraine.
A telling study evaluated nearly 3,000 people who all believed they had recurring sinus headaches and had never been diagnosed with migraine. Researchers found that 88% of them actually had migraine. True sinus headaches are caused by a bacterial or viral sinus infection and come with thick, discolored nasal discharge, reduced sense of smell, and often a fever. If your “sinus headache” doesn’t include those signs and tends to be triggered by weather changes, stress, or hormonal shifts, it’s more likely migraine.
What’s Happening in Your Brain
Tension-type headaches are generally linked to muscle tightness and stress-related changes in how your brain processes pain signals. The mechanism is relatively straightforward.
Migraine involves something more complex. During an attack, a network of nerves called the trigeminal system becomes activated. This system transmits pain signals from the membranes surrounding your brain. When it fires, it releases a signaling molecule that causes blood vessels in the brain to dilate and surrounding tissue to become inflamed. This neurogenic inflammation sensitizes pain receptors, which is why even normal stimuli like light, sound, and movement become intolerable. It’s also why migraine responds to a different class of treatments than tension headaches do.
How Treatment Differs
Tension-type headaches generally respond well to over-the-counter pain relievers, rest, and stress management. For most people, these headaches are an inconvenience rather than a recurring medical problem.
Migraine treatment works on two tracks: stopping an attack once it starts and preventing future attacks. For acute episodes, medications designed specifically for migraine target the trigeminal nerve pathway and the inflammatory process described above. These are different from standard pain relievers and tend to work best when taken early in an attack. For people who experience frequent migraines (typically four or more days per month), preventive therapies can reduce how often attacks occur and how severe they are. Newer preventive options specifically block the signaling molecule involved in the trigeminal inflammation process, which represents a more targeted approach than older preventive medications.
Lifestyle adjustments matter for both conditions but are especially important for migraine. Keeping a consistent sleep schedule, staying hydrated, managing stress, and identifying your personal triggers (certain foods, hormonal changes, weather shifts, skipped meals) can meaningfully reduce attack frequency.
Headache Symptoms That Need Urgent Attention
Most headaches and migraines, while painful, are not dangerous. But certain features signal something more serious. Seek emergency care for a headache that strikes suddenly and severely (often described as the worst headache of your life), a headache accompanied by fever and neurological changes like confusion, vision loss, weakness, or difficulty speaking, or a headache following a head injury. New or changed headache patterns after age 50, headaches that worsen with coughing, sneezing, or changes in position, and headaches that progressively worsen over days or weeks also warrant prompt medical evaluation.
If you’ve been having recurring headaches that you’ve been managing on your own, especially if they include nausea, light sensitivity, or are disabling enough to disrupt your routine, those are likely migraines. Getting the right diagnosis opens the door to treatments that work far better than general pain relievers alone.