Woke with no headache. Mild cluster started ramping up around 12:30. Never got very bad, maybe around have one or two. Faded by 2:00p.m. to a slight uncomfortable feeling in the cluster spot nagging low-level pain the rest of the evening and also a pretty strong bout sleepiness around five o'clock

All in all, in manageable day. I found myself thinking that if most days were like this one I wouldn't have much problem working around headaches.