@shilolo Your experience is more in line with what uptodate.com says. The thing is, in a primary care practice, headache, like anything else, tends to be multifactorial. Anyway, here is a cut and paste from uptodate.
CLINICAL MANIFESTATIONS — Migraine commonly begins early in the morning but can occur at any time. Nocturnal headaches, which awaken the patient from sleep, characteristically occur with cluster headaches, but migraine can awaken patients as well. However, in a patient with the recent onset of nocturnal headaches, brain tumor and glaucoma should be carefully excluded by thorough neurologic and ophthalmologic evaluation, with appropriate imaging studies if indicated.
The headache is lateralized during severe migraine attacks in 60 to 70 percent of patients; bifrontal or global headache occurs in up to 30 percent. Occasionally, other locations are described, including bioccipital headaches. The pain is usually gradual in onset, following a crescendo pattern with gradual but complete resolution [33]. The headache is usually dull, deep, and steady when mild to moderate; it becomes throbbing or pulsatile when severe.