Cluster headache struck like lightning early this morning. At a really bad time, too: I was trying to write a paper that’s due in two and a half hours. I took a Tramadol pill, but within half an hour I was screaming. (I am alone, thank goodness.) I took another. The pain lessened somewhat but was still very much a presence. I threw caution to the wind and took a third pill. I think that’s as good as it’s going to get. 150 milligrams of Tramadol and my headache is still there. I’ll probably have to take more in four to six hours when the first three wear off.