The patient in this question has cluster headaches. These headaches can be differentiated from migraines and tension headaches, as they tend to come in episodes across several years, with absent periods in between. Cluster headaches are often described as excruciatingly painful (sometimes called "suicide headaches").
submitted by sympathetikey(363), 2019-06-09T03:19:29Z
Buzzword: excessive tearing
Cluster headaches, in questions, always come with autonomic symptoms.