What should the history of present illness (HPI) include for a patient presenting with a headache?

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History of Present Illness for Headache

A comprehensive HPI for headache must systematically capture: age at onset, duration of episodes, frequency, pain characteristics (location, quality, severity, aggravating/relieving factors), accompanying symptoms, aura features if present, and medication use history 1.

Essential Components to Document

Temporal Pattern

  • Age at onset of the headache disorder
  • Duration of individual episodes (4-72 hours suggests migraine; 15-180 minutes suggests cluster; variable for tension-type)
  • Frequency of attacks (≥15 days/month for >3 months indicates chronic migraine) 1
  • Time of day when headaches typically occur 2
  • Relationship to menstrual cycle in women 2

Pain Characteristics

Document at least two of the following to support migraine diagnosis 1:

  • Location: Unilateral vs. bilateral
  • Quality: Pulsating/throbbing vs. pressing/tightening
  • Severity: Moderate to severe intensity (use numeric scale)
  • Aggravating factors: Worsening with routine physical activity (walking, climbing stairs) vs. no aggravation

Associated Symptoms

Critical for distinguishing headache types 2, 1:

  • Nausea and/or vomiting
  • Photophobia and phonophobia (both required for migraine)
  • Autonomic features: Lacrimation, nasal congestion, rhinorrhea, facial sweating, ptosis, miosis, eyelid edema (suggests cluster headache)
  • Prodromal symptoms: Food cravings, heightened sensory perceptions, mood/behavior changes 2

Aura Features (if present)

Document fully reversible symptoms 1:

  • Type: Visual (most common—scotomas, visual distortions), sensory, speech/language, motor, brainstem, or retinal
  • Temporal evolution: Gradual spread over ≥5 minutes
  • Duration: Each symptom lasting 5-60 minutes
  • Laterality: Unilateral symptoms
  • Relationship to headache: Aura accompanied by or followed by headache within 60 minutes

Medication History

Critical to identify medication-overuse headache 1:

  • Acute medication use: Frequency and types (non-opioid analgesics ≥15 days/month or triptans/combination medications ≥10 days/month for >3 months indicates medication overuse)
  • Previous preventive medications: Trials and responses
  • Over-the-counter medication use (often underreported) 3

Trigger Factors

Document specific triggers 2:

  • Hormonal changes
  • Specific foods
  • Sensory stimuli (light, smells)
  • Missed meals
  • Relief of tension after stressful events
  • Physical exertion or Valsalva maneuvers

Red Flags Requiring Immediate Attention

These features mandate urgent evaluation and often neuroimaging 2, 4, 2:

  • "Thunderclap" headache: Abrupt onset reaching maximal intensity immediately (suggests subarachnoid hemorrhage) 4
  • "Worst headache of life" (reported by 80% of SAH patients who can give history) 4
  • Rapidly increasing frequency of headaches
  • New onset after age 50 (consider temporal arteritis)
  • Headache awakening patient from sleep
  • Headache with exertion, cough, or Valsalva maneuver
  • Progressive headache pattern or marked change in established pattern
  • Persistent headache following head trauma
  • Associated fever, weight loss, or altered consciousness
  • Focal neurological symptoms or signs
  • History of uncoordination
  • Neck stiffness (meningitis, SAH)

Family History

Document family history of migraine (strong genetic component; prevalence higher among first-degree relatives), as this strengthens diagnostic suspicion, particularly if symptom onset was at or around puberty 1.

Diagnostic Utility

The POUNDing mnemonic helps confirm migraine when taking the HPI 5:

  • Pulsating quality
  • One day duration (4-72 hOurs)
  • Unilateral location
  • Nausea/vomiting
  • Disabling intensity

If 4 of 5 criteria present: likelihood ratio 24 for migraine; if 3 present: LR 3.5; if ≤2 present: LR 0.41 5.

Common Pitfalls to Avoid

  • Failing to quantify medication frequency leads to missed medication-overuse headache diagnosis
  • Not distinguishing between the headache disorder pattern and the current episode—both are needed
  • Overlooking sentinel/warning headaches that may precede major events (10-43% of SAH patients report these) 4
  • Inadequate characterization of "aura"—patients may describe various phenomena; systematic questioning about visual, sensory, and speech symptoms with temporal characteristics is essential
  • Missing the distinction between tension-type features (bilateral, pressing, no aggravation with activity, no nausea/vomiting) and migraine features 2

References

1
Guideline

diagnosis and management of migraine in ten steps.

Nature Reviews Neurology, 2021

2
Guideline

management of the acute migraine headache.

American family physician, 2002

3
Research

Practical evaluation and diagnosis of headache.

Seminars in neurology, 1997

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Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.