Right now, a persistent, irregular throb just below (vertically, not cross-sectionally - I love making up words). Earlier, various muscle twitches that subside in minutes (or more if I continue to pay attention without flexing the affected muscle groups). Sharp pains in my head/brain. The world - traffic & travel, stray animals, natural disasters, and stuff like strep, staph, H1N1 et cetera, descending en masse on us all. ;)