cluster headache

that's what the dr. said after i waited 5 hrs to see someone.
but as i'm reading it right now i don't think that's what i have.
It's not near my eyes but the lower back of my neck and it so lasted more than 3 hrs...everything else sounds right though. it does wake me up, i did drink vodka saturday night which would trigger it, it does hurt like heck, i do pace around aimlessly...the "cluster" part = sunday/monday/tuesday...

http://en.wikipedia.org/wiki/Cluster_headache

"Cluster headaches are rare, extremely painful and debilitating headaches that occur in groups or clusters.

Signs and symptoms

Cluster headache sufferers typically experience very severe headaches of a piercing quality near one eye or temple that last for fifteen minutes to three hours. The headaches are usually unilateral and occasionally change sides.

Pain

Persons who have experienced both cluster headaches and other painful conditions (childbirth, migraines) report that the pain of cluster headaches is far worse, significantly more severe than a migraine.^[1] The pain has been described as akin to being stabbed repeatedly in the eye with an ice pick^[2] or hot poker. ^[3] It has been described in medical journals as one of the most severe pain syndromes suffered by human beings.^[4]"

Migraines sound too similiar: http://en.wikipedia.org/wiki/Migraine

I don't know what it is, but I'm hoping it will stop now. thanks!