apnea & migraine?

I'm curious about whether others have noticed significant improvement in migraines after starting CPAP treatment?

For me it has been an unexpected benefit -- in fact by far the main benefit.

Have had chronic daily (almost constant) migraine for about a decade. But since starting CPAP have had significant improvement: very little or no migraine on at least half the days of the month I've been on CPAP!

Haven't had much improvement in energy, however.

Gracie-
I had been diagnosed with both chronic sinus headaches and atypical migraines in the year prior to starting apap. Had daily headache without relief for just over a year. Within 1 week of starting cpap the headache improved and in the last 6 months since then I have not had anything more than a mild short lived, relieved by Tylenol sinus headache! I LOVE my Remstar auto!!! And my neurologist, ENT, Family Practitioner, DME and all the others that have gotten me back closer to "normal". (Though it was not easy to work with many of the above mentioned at the time)

I used to have migraine headaches, a couple every month. Since starting CPAP in Oct '4, I have had one migraine.

Go figure.

I have heard "rumor" of a correlation of some migraines with OSA.

I used to have LOT of problem with headaches that were borderline migraine, according to docs that I kept asking. The pattern was "weekend headaches" primarily.

CPAP wiped out about 90% of my headaches.

My THEORY (since the docs are clueless) is that I would "sleep in" on weekends and the longer period of sleep was actually just more time spent in oxygen deprivation state due to OSA and I would wake with a oxygen deprivation headache.

Just a theory though.

All I know is with CPAP, my debilitating headaches are gone.