Here I thought I was totally free of these headaches - in fact last December I didn't go through the usual cycle of 6 weeks of misery.  I thought this is good !!  Well, for some reason I am getting the same type of headache every 2 hours when I go to sleep but the unusual part of all of this is that these headaches - so very much like my cluster headaches - responds to Extra Strength Excedrin... Same left sided pain, into the jawline, into the nasal cavity but yet it is responding to this pill .. Any suggestions ?  

A lot of people can kill nasty shadows and low end attacks with Excedrin, I believe that's got a good jolt of caffeine in it? I'd certainly want to have my oxygen or a secondary abortive ready as when the CH''s start to build in intensity you might find the excederin can't hold up against it.

Wishing you a brief cycle!!

Joe