Migraine Symptoms: 4 Phases Explained

📚 This article covers all migraine symptoms organized across the 4 distinct phases occurring in the brain.

How Many Phases Does a Migraine Have?

Migraine is not just a headache — it is a 4-phase neurological process from before the pain begins until well after it ends. Brain chemistry and electrical activity start changing 1-2 days before the pain phase.

Most patients don't realize there are 4 distinct phases, so they react too late — but recognizing each phase helps you:

• Take medication early — Triptans work best at pain onset
• Prepare before the pain — reschedule meetings, set up a rest space
• Avoid triggers — once you know an attack is coming
• Know when recovery is normal — Postdrome is not a relapse

Overview of All 4 Phases

Phase 1: Prodrome (Premonitory)

Prodrome is the warning phase occurring 1-2 days before the pain. The hypothalamus begins functioning abnormally, causing subtle but distinctive feelings that patients often struggle to describe.

Prodrome Symptoms

• Mood changes — irritability, sadness, or unusual euphoria
• Food cravings — particularly sweets, chocolate, salty foods
• Neck and shoulder tightness — the most common premonitory symptom
• Frequent yawning — more than usual without being tired
• Frequent urination — abnormal hypothalamic signaling
• Brain fog — reduced concentration
• Sensitivity to light/sound/smell — begins before pain
• Excessive thirst

💡 How to use this phase: Start reducing triggers (coffee, alcohol, bright light), prepare medication, reschedule important meetings, hydrate, sleep well — sometimes you can "abort" the migraine at this stage.

Phase 2: Aura (Visual Disturbances)

Aura occurs in 20-30% of migraine patients, beginning 5-60 minutes before pain. It is a transient neurological dysfunction caused by Cortical Spreading Depression — a wave of altered electrical activity across the brain cortex.

Types of Aura

Visual Aura (most common — 90% of all auras)

• Zigzag lines with shimmering edges (Fortification spectra)
• Blind spots (Scotoma)
• Flashing lights (Photopsia)
• Blurred vision in one eye

Sensory Aura

• Numbness in face, lips, or fingertips
• Starts at fingertips, spreads up the arm and face
• One-sided, usually matching the side that will hurt

Speech Aura (Aphasia)

• Difficulty finding words
• Trouble understanding speech

Motor Aura (Hemiplegic Migraine — rare)

• One-sided weakness, mimicking stroke
• First episode requires ER evaluation to rule out stroke

⚠️ After Aura: symptoms gradually resolve within 1 hour, then the pain phase begins — do NOT drive during Aura because vision and sensation are impaired.

💡 Some patients have Aura without subsequent pain (Silent migraine) — still considered migraine.

Phase 3: Headache (Pain Phase)

The headache phase is the most recognized — lasting 4-72 hours if untreated. Pain results from dilation of intracranial blood vessels and inflammation of the trigeminal nerve.

Pain Characteristics

• One-sided — 60-70% of patients, located at temple, forehead, or behind one eye
• Throbbing — pulsing with the heartbeat
• Moderate-to-severe intensity — interferes with work and sleep
• Worsens with movement — climbing stairs, bending, coughing, sneezing

Associated Symptoms

• Nausea — 80% of patients
• Vomiting — 30%
• Photophobia — preference for darkness
• Phonophobia — normal sounds feel too loud
• Osmophobia — perfumes, food smells trigger nausea
• Dizziness — balance problems
• Blurred vision

Typical Behavior During Attack

• Seek dark, quiet place to lie down — opposite of Cluster headache (restless)
• Close curtains, mute sounds
• Press temples or apply cold compress

📖 Read more: Migraine Complete Guide — Causes, Triggers, Medications

Phase 4: Postdrome (Recovery)

Postdrome is the often-overlooked phase — occurring after the pain resolves, lasting 1-2 days. Many patients mistake it for a recurrence; in fact, the brain is returning to baseline.

Postdrome Symptoms

• Fatigue — feels like recovering from flu
• Brain fog, reduced concentration
• Irritability or unusual mood elevation
• Increased hunger or loss of appetite
• Body aches — like after intense exercise
• Mild dizziness
• Residual light/sound sensitivity

How to Recover from Postdrome

• Adequate rest — brain needs time to reset
• Plenty of water — replace fluids lost through vomiting and sweating
• Light meals — porridge, rice soup, banana
• Avoid strenuous activity — both physical and mental
• Avoid triggers — brain remains hypersensitive

💡 In children, Postdrome may show as "too quick recovery" — kids become hyperactive, very hungry, or unusually cheerful right after pain resolves.

Which Phase Gives Best Drug Response?

Timing is the most critical factor in acute migraine treatment — taking medication too late produces incomplete relief:

Prodrome Phase — Not Effective Yet

At this stage do NOT take Triptans — pain has not begun. Instead:

• Hydrate, rest, avoid triggers
• Take NSAIDs (Naproxen) if you have body aches — sometimes aborts the attack

Aura Phase — Prepare Medication

Patients with consistent Aura — this signals imminent pain. Prepare medication:

• Triptans — take when Aura subsides and pain begins, NOT during Aura. Triptans constrict vessels and may prolong Aura.
• Take anti-nausea Domperidone 10 mg first — improves Triptan absorption

Headache Phase (First Hour) — Golden Window

Taking medication within the first hour of pain produces the best results:

• Triptans (Sumigran/Tofago) — onset 30-60 min, near-complete pain abortion
• NSAIDs + Triptans — combined therapy outperforms either alone, reduces recurrence
• If nausea prevents swallowing pills → use Tofago (oral disintegrating) or injectable Sumatriptan

Postdrome — No More Painkillers

Painkillers don't help in this phase — symptoms are from brain recovery, not inflammation. Manage with rest and hydration.

📖 Read more: Best Migraine Medicine — Comparing Sumigran vs Tofago

Warning Symptoms That Need ER Care

Typical migraine is not an emergency, but certain features that accompany or mimic migraine may indicate serious conditions:

🚨 Go to the ER Immediately

• ❗ Thunderclap headache — sudden onset reaching maximum within 1 minute (suspect intracranial hemorrhage)
• ❗ Headache with persistent one-sided weakness (suspect stroke)
• ❗ Headache with slurred speech, facial droop
• ❗ Headache with high fever, stiff neck (suspect meningitis)
• ❗ Headache with seizure or loss of consciousness
• ❗ Headache with persistent partial vision loss
• ❗ New-onset headache after age 50
• ❗ Headache after head injury
• ❗ Status Migrainosus — pain persisting beyond 72 hours

See a Doctor Within 1-2 Weeks

• Change in frequency or pattern
• More than 4 attacks/month — consider preventive treatment
• Painkillers used more than 10 days/month (suspect MOH)
• Atypical Aura — weakness, confusion

How to Keep a Migraine Diary

Symptom tracking is the most important tool for long-term migraine management. It helps:

• Identify personal triggers
• Measure medication effectiveness
• Decide whether to start preventive therapy
• Provide data to your doctor for diagnosis

What to Record Each Attack

• Start/end times for each phase
• Pain location — left/right/bilateral, temple/forehead/occiput
• Pain quality — throbbing/dull/sharp; severity 1-10
• Associated symptoms — nausea/vomiting/light sensitivity/aura
• Suspected triggers — food, sleep, stress, weather, menstrual cycle
• Medications — name, dose, time, effect
• Postdrome severity — days affected, symptoms

Tools You Can Use

• Plain notebook — immediate, portable
• Google Sheets / Notion — adds graphs and analysis
• Apps like Migraine Buddy, N1-Headache (available in Thailand)
• Mobile notes — for simplicity

💡 Track for at least 3 months before drawing conclusions — some triggers accumulate across days (e.g., 3 nights of poor sleep before an attack).