In the fall of his fifth year, my son started complaining of brief but blinding bursts of pain in his head, which the pediatrician diagnosed as tension headaches. My ex-wife was skeptical, but I believed the doctor, falling prey to the assumption that children exaggerate discomfort; I inherited my mother's gift for denial, which often cloaks itself as hope.
His headaches eventually hit a peak of twenty times a day. They interrupted his kindergarten activity so routinely that the school...
]]>