A migraine diary can turn a vague pattern into useful information. This guide explains what to record during and between attacks, how to compare possible triggers without jumping to conclusions, and what to bring to a clinician. Use the template after each episode, then review it regularly rather than trying to remember weeks of symptoms at once.
Overview
Migraine is more than a headache. An attack may include throbbing or pulsating head pain, nausea, vomiting, sensitivity to light or sound, visual symptoms, dizziness, or difficulty concentrating. Some people have an aura—temporary visual, sensory, or speech-related symptoms—before or during the headache, while others do not. Symptoms and patterns vary considerably from person to person.
A migraine diary cannot diagnose the cause of a headache, and a trigger listed near an attack is not automatically the reason for it. Sleep disruption, stress, hormonal changes, skipped meals, dehydration, illness, sensory stimulation, and other factors may overlap. Tracking helps you and a clinician look for repeated associations, assess how often attacks occur, and evaluate whether a treatment plan is helping.
Record observations as neutrally as possible. Instead of writing “stress caused migraine,” write “high-stress workday; headache began later that evening.” This distinction makes the diary more useful and avoids unnecessary restrictions based on a single episode.
How migraine may compare with other headache patterns
| Pattern | Features that may occur | Why tracking helps |
|---|---|---|
| Migraine | Moderate or severe pain, often worsened by routine activity, with nausea or sensitivity to light and sound; aura may occur. | Shows frequency, duration, associated symptoms, and response to treatment. |
| Tension-type headache | Pressure or tightness, often on both sides, without prominent nausea; neck or scalp tenderness may occur. | Helps distinguish recurring pressure from attacks with migraine features. |
| Medication-overuse pattern | Headaches become frequent or persistent while acute headache medicines are used regularly. | Documents the number of medication-use days for clinical review. |
| Headache linked to another condition | New, changing, or unusual symptoms, sometimes with fever, neurological changes, or injury. | Highlights changes that require medical assessment rather than self-tracking alone. |
This comparison is educational, not a diagnosis. A new or changing headache pattern deserves individual assessment, especially if it does not resemble your usual attacks.
What to track
Choose a method you will actually use: a paper calendar, notes app, spreadsheet, or dedicated migraine diary. Keep entries brief during an attack and add details later if necessary. Consistency is more valuable than a long narrative.
Record each headache or migraine episode
- Date and start time: Note when symptoms began and, if known, when they ended. If pain continued into the next day, record that clearly.
- Severity: Use a consistent scale, such as 0 to 10, and describe whether pain was mild, moderate, or severe. Record the highest severity and how long it lasted.
- Location and quality: Note one-sided or bilateral pain, pressure, throbbing, stabbing, or another description.
- Associated symptoms: Include nausea, vomiting, light or sound sensitivity, smell sensitivity, dizziness, visual changes, numbness, weakness, speech difficulty, or trouble concentrating.
- Aura: If you experience temporary visual, sensory, or speech symptoms, record what happened, when it started, and how long it lasted. Do not assume every visual or neurological symptom is an aura.
- Function: Record whether you could work, attend school, drive, exercise, sleep, or complete usual activities.
- Medication and other treatment: List the name, dose if known, time taken, and whether it helped. Include prescription medicines, over-the-counter products, caffeine, supplements, rest, an ice pack, or other measures.
Track possible influences without labeling them as causes
For the day before and the day of an attack, record variables that are relevant to your routine:
- Sleep: Approximate bedtime, wake time, sleep quality, unusual sleep loss, oversleeping, or a change in schedule.
- Food and fluids: Missed or delayed meals, unusually long gaps between meals, alcohol, caffeine changes, and whether you were able to drink normally.
- Stress and recovery: Workload, emotional strain, travel, relaxation after prolonged stress, and time spent resting.
- Environment: Heat, bright or flickering light, strong smells, noise, altitude, weather changes, or prolonged screen use if these seem relevant.
- Physical factors: Illness, fever, neck discomfort, intense exercise, injury, or changes in activity.
- Hormonal and reproductive patterns: Menstrual-cycle day, hormonal contraception changes, pregnancy or postpartum status, and other relevant changes. Discuss this information with a clinician rather than changing medication independently.
A simple entry might read: “Tuesday, pain began at 3 p.m.; left-sided throbbing, 7/10; nausea and light sensitivity; slept five hours; lunch delayed; high work stress; took prescribed acute medicine at 4 p.m.; pain improved by 7 p.m.”
Cadence and checkpoints
Track every episode for a period long enough to reveal your usual pattern. If daily entries feel burdensome, use a short checklist and expand only when symptoms change. A calendar view can quickly show whether attacks cluster around certain days, activities, or medication-use patterns.
After each episode
Complete the basic fields: start and end time, severity, symptoms, treatment, and response. Add unusual circumstances while they are still easy to remember.
Weekly or monthly review
Count headache days, migraine days if you can distinguish them, days with missed activities, and days when acute medication was used. Look for repeated combinations rather than isolated events. Ask whether attacks are becoming more frequent, longer, more severe, or harder to treat.
Before a clinical appointment
Summarize the most useful information on one page: average frequency, longest episode, most disabling symptoms, medicines tried, benefits and side effects, and your top questions. Bring the medication containers or an up-to-date list when possible. If another person observed unusual behavior, confusion, or speech changes, their description may also help.
How to interpret changes
Look for patterns that repeat across several episodes. For example, an attack may repeatedly follow a combination of insufficient sleep and a delayed meal, while the same food may appear on headache-free days as well. That information is more useful than declaring a food or activity a trigger after one episode.
Consider whether a suspected trigger is modifiable and whether changing it is safe and realistic. Regular sleep and meals, adequate hydration, planned breaks, and a stable caffeine routine may be reasonable general measures, but restrictive diets or major lifestyle changes can create additional problems. Make one change at a time when practical, and continue recording symptoms.
Medication patterns deserve particular attention. Record how often acute medicines are used, not only whether they work. Frequent headache or frequent use of acute treatment can require a clinician’s review because the overall pattern may call for preventive treatment or a different strategy. Do not stop a prescribed medicine abruptly without advice.
Seek urgent medical help for a sudden, severe headache that reaches maximum intensity rapidly; a headache after a significant head injury; or headache with new weakness, fainting, confusion, seizure, persistent vision loss, trouble speaking, stiff neck with fever, or other alarming neurological symptoms. Urgent assessment is also appropriate when a headache is new during pregnancy or soon after delivery, or when you are seriously unwell. These warning signs should not be managed by waiting for the diary to show a pattern.
When to revisit
Return to your diary after every episode, review it at least monthly while your pattern is active, and update your summary before primary-care or neurology appointments. Revisit it sooner if headaches become more frequent, change character, last longer, interfere more with daily life, or respond differently to familiar treatment.
Start a fresh review after a medication change, a major sleep or work-schedule change, pregnancy or postpartum changes, an illness, or a new diagnosis. Keep older summaries rather than deleting them; they may help show whether a change was temporary or sustained.
Practical next step: Copy this checklist into your preferred notes app today: date and time; duration; severity; location and quality; symptoms; sleep; meals and fluids; stress; menstrual-cycle information if relevant; medicines and response; and activities missed. Use it for the next episode, then bring the pattern—not just the worst day—to a clinician. A diary is most valuable when it supports a conversation, not when it replaces one.
