SassyPW. Very interesting read. No matter what the underlying cause of CH is, I certainly believe that (in my own case) that the sleep depravation makes matters worse and worse, until, perhaps, I was so incredibly tired that I was able to shut down completely.
This also fits with the fact that I do sleep so well now that I'm on Cipralex. It doesn't seem to help with what it was prescribed for, but I dare not stop taking it.
LR. As I mentioned, I get Clusters and Classic Migraine, and am pretty convinced that although both result in pain, that their trigger mechanisms are different.