How to Use a Headache Calendar: Days, Notes & Gaps

Give the calendar one clear job

Use the calendar to show recorded days across a month. Keep longer descriptions of symptoms, timing, and medicines in an accompanying diary. Separating the overview from the detail means the calendar can stay readable even when one day needs a longer explanation.

The American Migraine Foundation describes a simple calendar as one way to keep a symptom journal manageable. The right format is the one you can return to and your healthcare professional can understand. Ask whether they want a particular calendar or definition before building an elaborate system.

Our monthly migraine tracker printable is undated, so you can start in the middle of the month. Write the month and year first, then cross out dates the month does not have. Keep the unused dates visibly different from days you forgot to record.

Write a small key before you start

Decide what each mark means and put the key beside the calendar. For example, you might use “H” for a day when you recorded head pain, a small dot for a day when you recorded taking a headache medicine, and a question mark when you cannot remember enough to classify the day.

This is an organizational example, not a clinical definition. Do not mark every headache as migraine unless that reflects your own diagnosis and the guidance you have received. If a clinician has asked you to distinguish migraine days from other headache days, ask how they want you to do it.

Use a consistent severity scale only if you are recording severity. A color means little without its definition. Add a word or symbol alongside color so that a black-and-white printout remains understandable. You should not have to remember what a pale pink square meant three weeks later.

Distinguish “none recorded” from “not recorded”

An empty square can mean several things: no headache, no entry, a day you were too unwell to write, or a day outside the tracking period. A calendar becomes easier to interpret when those meanings are separate.

One practical approach is to mark a checked day explicitly, then leave genuinely missing information as a gap. If you fill in a day later, add “from memory” rather than giving it the same apparent precision as an entry made at the time.

Consider a fictional week with three marked headache days and two empty squares. It is accurate to say “three days with recorded headache.” It is not accurate to conclude that the remaining four days were symptom-free unless your record establishes that. The distinction matters when you summarize the month.

Keep an overnight attack connected

If an attack crosses midnight, preserve its actual start and end in the detailed diary. On the calendar, show the affected dates using your chosen convention. A short arrow or a note such as “continued from Monday” can connect the dates without inventing a second attack.

A count of attack entries and a count of calendar days answer different questions. One entry can span two dates; several entries can occur on a single date. Avoid mixing those counts in a summary. Ask your clinician which number they want to review rather than applying your own diagnostic threshold.

For medicines, record what you actually took and when in the detailed log. A calendar marker is a quick reference, not a dosing recommendation. Bring questions about frequency or medicine use to a healthcare professional.

Use the month to find the entries worth opening

At review time, first check the date range and the gaps. Then choose a few days you want to discuss and find the corresponding diary entries. The Migraine Trust’s diary guidance describes recording timing, severity, symptoms, and medication as useful context. The calendar helps you locate those details; it does not replace them.

Calmira combines an attack diary with a calendar, so you can revisit recorded days on your iPhone. If you use paper, give each daily sheet a clear date and keep the sheets with the monthly overview. Either way, bring the key with you. A simple calendar that another person can read is more useful than a beautiful one whose symbols only you understand.