A headache that returns after a crash can feel random. It comes on during a grocery run, then again in the middle of the night, then skips a day and shows up after supper. Keeping a short trigger note can make that pattern easier to see and easier to describe to the person who examines you. The note does not tell you what is causing the headache. It gives your visit a clearer starting point.
What to write down each time
Keep one line per headache. Write the date and the clock time, then how long it lasted as best you can estimate. Note where it started and whether it spread. Add what you were doing in the hour before it began: sitting at a screen, driving, lifting, cooking, sitting in a loud room, or moving from bright light into a dim one. Note what you ate and when, how much water you drank that day, and how you slept. If you took something for it, write the name, the amount, and the time. Write the line the same day if you can, since details blur by evening. Keep the same wording each time so the lines can be compared at a glance.
Small details matter more than they seem to. Skipped lunch and ate lunch late are different entries. Two hours at the computer tells a different story than twenty minutes at the computer, then a call. Write the plain fact, not a guess about what it means.
Looking for patterns without overreading them
After a week or two, read the lines together. Are the headaches clustered on certain days, certain times, or certain activities? Do they follow long stretches without food or water? Do they show up after weather changes, which can shift quickly in the St. Louis area in the fall? Some people notice a link to screen time, bright light, or a rough night of sleep. Others notice no clear link at all. Both results are useful to bring along.
Be careful with the conclusions you draw from your own notes. A pattern in a small number of entries can be coincidence. Avoid deciding that one food or one activity caused every episode. Instead, mark the pattern as a question to raise, such as whether the headaches tend to follow long stretches at a screen. An examiner can weigh that question with your full history, which a notebook alone cannot do.
Where the note fits in your visit
Bring the note to your first appointment, typed or handwritten, and hand it over early in the conversation. Pair it with a plain list of what happened in the crash and when your first headache started, described in your own words. If you have already seen a clinic, bring any discharge papers or medication list you were given. If you are not sure whether a symptom belongs in the note, write it down anyway. Leaving out a detail is easier to fix in the room than writing down too much is.
Your note should also include headaches you did not expect to matter, such as a brief one that cleared up in ten minutes. Short episodes can still be part of the picture.
When not to wait for the log
A trigger note is for tracking ordinary headaches, not for emergencies. A headache that comes on suddenly and reaches full strength within moments, or one that comes with weakness, numbness on one side, confusion, trouble speaking, vision loss, repeated vomiting, a stiff neck with fever, or trouble staying awake, needs emergency care right away. Do not spend time filling in a log first. Also contact your own medical provider sooner if headaches are getting worse from week to week, waking you from sleep, or not easing with the rest and routine you have been keeping.
This article is educational only and does not diagnose any condition. It is meant to help you prepare notes and questions for a conversation with a licensed examiner, who can decide what your symptoms mean and what, if anything, should happen next.