Migraine days

What counts as a migraine day?

In Ember, it’s a day with head pain and 2 or more migraine features, or symptoms that limit your day. Researchers haven’t settled on one definition yet.

Try it

Log a day and see how it counts.

The result uses the same rules as the app.

Every classification follows fixed rules built on ICHD-3 criteria. No AI guesses, no black box.

Any head pain today?

Symptoms

Impact

Migraine day

2 migraine features → Migraine day

  • Nausea
  • Neck pain

Day types

Every day is one of four types.

Migraine day
Head pain with two or more migraine features, symptoms without head pain that limit activity, or a migraine-specific medication logged when pain or symptoms are present.
Headache day
Head pain that doesn’t meet migraine criteria.
Symptom day
Symptoms without head pain or significant impact.
Clear day
No pain, no symptoms.

Migraine features

What counts as a migraine feature.

Each feature counts once, and nausea and vomiting count together as one. Brain fog and fatigue are tracked but don’t count.

What counts as a migraine feature

  • Moderate or severe head pain
  • Functional limitation
  • Light sensitivity
  • Sound sensitivity
  • Aura
  • Smell sensitivity
  • Neck pain
  • Dizziness
  • Nausea or vomiting

Tracked but not counted as features

  • Brain fog
  • Fatigue

Medicine

A migraine medicine can make it a migraine day.

Logging a migraine-specific medicine on a day with pain or symptoms makes it a migraine day. General pain relievers like ibuprofen and acetaminophen don’t count on their own, because they treat many conditions.

Examples

  • Imitrex
  • Maxalt
  • Zomig
  • Relpax
  • Ubrelvy
  • Nurtec ODT
  • Zavzpret
  • Migranal
  • Trudhesa

Why it matters

Your monthly count guides treatment.

Clinicians use migraine and headache days per month to decide on preventive treatment and to see whether it’s working.3

15+

headache days a month

8+

of them migraine days

For more than 3 months, this is chronic migraine.1

Research

Researchers are still agreeing on a definition.

Trials of newer migraine preventives used 12 different definitions of a migraine day. A 2026 expert consensus proposed one for the next edition of ICHD.2

It uses how long the headache lasted. Ember doesn’t ask, so its rules leave duration out.

How a day is counted
Situation2026 consensusEmber
Head pain, no medicine4+ hours, with migraine featuresAny length, with 2+ migraine features
Head pain, treated30+ minutes, any medicineA migraine medicine, with pain or symptoms
AuraCounts on its ownCounts as one feature
Symptoms, no head painNot includedCounts when they limit your day

Sources

  1. Headache Classification Committee of the International Headache Society. The International Classification of Headache Disorders, 3rd edition. Cephalalgia. 2018;38(1):1–211. ichd-3.org/
  2. De Loose L, Paemeleire K, Deligianni CI, et al. What’s a migraine day? Towards a consensus definition for clinical care and research – a Delphi panel-based study. J Headache Pain. 2026;27:135. doi.org/10.1186/s10194-026-02383-2
  3. Ailani J, Burch RC, Robbins MS. The American Headache Society Consensus Statement: Update on integrating new migraine treatments into clinical practice. Headache. 2021;61(7):1021–1039. doi.org/10.1111/head.14153

Reviewed by a practicing headache specialist, October 17, 2026.

Ember counts your migraine days for you.

Log a day in 10 to 20 seconds. Free on iPhone and Android.