I'm no expert on such matters, but here's what I've been told in physiology class about caffeine...it acts as a vasoconstrictor meaning that in causes blood vessels to constrict and therefore limit blood flow. This is why they work in treating some headaches, the blood flow to the brain gets constricted. So the caffeine in coffee can help certain headaches. Part of the problem is that there are many types of caffeine, and many types of headaches. And chocolate can work as a trigger due to some other chemical in the chocolate not the caffeine. So basically you'll have to find out what is a trigger in your case and what helps.


And on a less scientific note: (((((mom))))) I'm sure hugs help!