I also keep a diary of every event, what type, time, duration, symptoms
, food involvement, activity, and other categories. I chart
these things for a couple of reasons. 1) I want to track down anything that even appears to exacerbate any symptoms so that I can alleviate it; 2) I want to visualize not only those categories, but the time of year, what type of allergens are about, pollution level, weather, and similar information.