Thunderclap headache
Similar to primary thunderclap headaches, secondary thunderclap headaches are defined as sudden onset headaches that achieve maximal intensity within one minute.
Tag Thunderclap headache
Chronic daily headaches
Chronic daily headaches are defined as headaches which occur at least 15 days or more per month for at least three months, regardless of the underlying headache aetiology.
Other primary headaches
In addition to migraine, tension-type headache and trigeminal autonomic cephalalgias, the International Headache Society includes a fourth category of primary headache disorders.