1. Acute recurrent
   • Migraine (common, classical, complicated)
     
     
2. Chronic non-progressive
   • Tension 
   • Anxiety
   • Depression
   • Somatisation
     
     
3. Chronic progressive
   • Tumour
   • Benign intracranial hypertension
   • Brain abcess
   • Hydrocephalus
     
     
4. Acute on Chronic non-progressive
   • Tension headache with coexistant migraine

(it may be helpful to show the child / family this chart and to ask them to identify the pattern themselves)