Yup I get cluster headaches. Usually about every 8 - 10 months they come around for a few weeks. It's been two years now, so I thought they were gone for good. I get on a steroid and calcium blocker, then pop on an oxygen mask to kill them when they hit. It's always different lengths of time that they last. But without oxygen, it feels like a drill bit is being ran into my temple, very painful, worse than migraines.
Thanks Trux, and D don't make me come down there son:)