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Published on: 2/25/2026
There are several factors to consider when deciding if a severe headache is a migraine; migraines are a neurological condition with throbbing head pain, sensitivity to light and sound, nausea, and sometimes aura caused by temporary brain signaling changes.
For medical next steps, see below for red flags that need urgent care, how diagnosis is made, common triggers to track, and proven treatments from over-the-counter and triptans to preventives and lifestyle changes, which can meaningfully affect what you should do next.
If you've ever had a severe headache that stopped you in your tracks, you may have wondered: Is this just a bad headache, or is it a migraine?
Understanding migraine symptoms and what causes them can help you decide what to do next — and when to seek medical care.
Migraines are not just "bad headaches." They are a neurological condition involving temporary changes in brain activity, nerve signaling, and blood flow. When your brain is "misfiring," it can create a cascade of symptoms that affect your head, vision, stomach, mood, and even your ability to think clearly.
Let's break it down in simple terms.
A migraine is a neurological disorder characterized by recurring attacks of head pain and other symptoms. According to major medical organizations such as the American Headache Society and the National Institute of Neurological Disorders and Stroke, migraines involve abnormal brain signaling that affects:
This explains why migraine symptoms go far beyond just head pain.
Migraine symptoms vary from person to person, but the most common include:
Some people experience aura before or during a migraine attack. This may include:
Aura usually lasts 5–60 minutes and resolves completely.
Migraine is believed to involve a complex chain reaction in the brain:
In simple terms, your nervous system becomes temporarily overactive and hypersensitive.
This is why everyday light, noise, or movement can feel unbearable during a migraine.
Many people confuse tension headaches with migraine. Here's how they differ:
Tension Headache
Migraine
If your headache interferes with work, school, or normal life, it's more likely to be migraine.
Migraines don't happen randomly. They often have triggers, including:
Triggers do not cause migraine disorder — but they can activate an attack in someone who is already susceptible.
Keeping a headache diary can help identify patterns.
Most migraines are not life-threatening. However, some headache symptoms require urgent medical care.
Seek immediate medical attention if you experience:
These could signal serious conditions such as stroke, meningitis, or bleeding in the brain.
If you are unsure, it is always safer to speak to a doctor.
There is no single blood test or scan that diagnoses migraine. Diagnosis is based on:
Imaging (like MRI or CT scan) may be ordered if your symptoms are unusual or if there are red flags.
If you're experiencing severe head pain and wondering whether it matches a migraine pattern, you can use a free AI-powered migraine symptom checker to quickly assess your symptoms and better understand what might be happening.
This is not a substitute for medical care, but it can help you prepare for a conversation with your doctor.
Migraine treatment usually falls into two categories:
Used during a migraine attack:
The goal is to stop symptoms early.
Used if migraines are frequent (more than 4–5 per month):
Preventive treatment reduces frequency and severity over time.
While medication can be very effective, lifestyle adjustments are equally important:
Small, consistent habits can reduce migraine frequency significantly.
Migraines are usually not life-threatening, but they can be disabling. Chronic migraine (15 or more headache days per month) can severely affect quality of life.
There is also a small increased risk of stroke in people who have migraine with aura — especially in smokers or those using estrogen-containing birth control. This does not mean panic is necessary, but it does mean you should discuss risk factors with your doctor.
Avoiding smoking and managing cardiovascular health are important.
You should talk to a doctor if:
Early treatment can prevent migraines from becoming chronic.
If anything feels severe, unusual, or potentially life-threatening, seek emergency medical care immediately.
If your head pain is intense, recurring, and accompanied by nausea or sensitivity to light or sound, it may not be "just a headache." It may be migraine.
Understanding migraine symptoms empowers you to take the right next steps:
Migraine is a real neurological condition — but it is also treatable. With the right diagnosis and care plan, many people regain control over their lives.
If you are unsure about your symptoms or worried something could be serious, speak to a doctor promptly. Your brain health is too important to ignore.
(References)
* Goadsby PJ. A review of migraine diagnosis and mechanisms. Lancet Neurol. 2023 Dec;22(12):1121-1134. doi: 10.1016/S1474-4422(23)00344-7. Epub 2023 Oct 19. PMID: 37866750.
* Hoffmann J, Recober A, Noseda R. Pathophysiology of migraine. Curr Pain Headache Rep. 2023 Apr;27(4):119-126. doi: 10.1007/s11916-023-01111-5. Epub 2023 Mar 15. PMID: 36920701.
* Ashina M, Holland S, Ashina H, Buse DC, Reuter U, Doležalová M, Ferrari MD. Migraine: a narrative review of current treatment options. Lancet. 2021 Jun 12;397(10287):1903-1918. doi: 10.1016/S0140-6736(21)00343-1. PMID: 34119020.
* Dodick DW. Acute and preventive treatment of migraine. Continuum (Minneap Minn). 2018 Aug;24(4, Headache):1048-1071. doi: 10.1212/CON.0000000000000632. PMID: 30075591.
* O'Brien HL, Lipton RB, Dodick DW, Goadsby PJ, Silberstein SD. Migraine prevention: an update on pharmacological and non-pharmacological therapies. Lancet Neurol. 2024 Jan;23(1):31-48. doi: 10.1016/S1474-4422(23)00407-6. Epub 2023 Nov 22. PMID: 38006846.
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