Recent unusual headaches can have various causes, ranging in severity from 'troubling' to 'generally fatal'. Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.
Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms. In order to diagnose recent unusual headaches, we could:
|West Nile Virus||97%||Confirm|
|Brain Tumor||2%||Ruled out|
Have you experienced any unusual headaches within the past month?
Possible responses:→ They are ongoing / don't know
→ Yes, one/some that have now resolved
→ Yes, I am having mild to moderate headaches
→ Yes, I am having severe headaches