Symptom Diary

A Printable Symptom Diary to Take to Your Doctor

When a symptom comes and goes, the worst time to describe it is in a ten-minute appointment. A written record turns vague memory into evidence. This printable symptom diary gives you a one-page log with columns for date, symptoms, severity from 1 to 10, possible triggers, actions you took, and free-form notes — scannable for a clinician and clear enough to fill in while you are unwell.

Download the PDF in A4 or US Letter, choose 10 to 20 rows per page, and print as many sheets as your review period needs. The columns are deliberately generic so the diary works for headaches, allergies, digestive issues, chronic pain, skin flare-ups, mental-health symptoms, and more.

Why a paper symptom diary is worth the effort

For chronic or recurring conditions, the data is often in the patterns rather than the episodes. Three migraines in a row on the two days after eating aged cheese tells you something a single entry never would. A diary lets you see the cluster at a glance.

The other value is consultation quality. GPs and specialists scan a single-page summary much faster than scrolling through a phone. A completed diary on the desk often changes the direction of the appointment — less time reconstructing, more time planning what to try next.

What each column captures

• Date — one row per flare or symptom entry.
• Symptoms — short list: "headache behind left eye", "bloating", "joint pain - knees".
• Severity 1-10 — a single subjective score. 1 is barely noticeable; 10 is worst imaginable.
• Triggers — suspected food, stress, weather, sleep, medications, anything relevant.
• Actions — what you took or did (painkillers, rest, antihistamine, ice, breathing exercise).
• Notes — how long it lasted, what helped, anything to mention at the next appointment.

Who this diary is for

Patients with chronic conditions

Migraines, IBS, endometriosis, fibromyalgia, long COVID, asthma, eczema — conditions where severity varies and triggers are sometimes hidden.

People exploring a new diagnosis

Between appointments, a written log accelerates the diagnostic journey. Doctors cannot see patterns if you cannot recall them.

Allergy and food-sensitivity investigations

Pair the diary with a food log and the correlation becomes visible within a few weeks.

Mental-health tracking

Works for anxiety, panic, low-mood days — severity + trigger + action is a useful structure across conditions.

Carers and parents

Recording a child or dependant's symptoms from the carer's perspective is often more accurate than relying on patient recall.

What you can customise

• Rows per page — 10 to 20.
• Title — default "Symptom Diary"; rename for a specific condition ("Migraine diary") if you want.
• Patient-name field — optional.
• Paper size — A4 or US Letter PDF.

Worked example

A patient tracking migraines fills in: 02 April, "left-side headache + nausea", 7/10, "poor sleep, red wine night before", "sumatriptan 50mg, dark room", "lasted 4 hours, helped after 45 min". The following week: 06 April, "light headache", 3/10, "missed lunch", "ibuprofen + food", "cleared in 1 hour". 11 April, "left-side headache", 6/10, "red wine again", "sumatriptan", "3 hours". Three rows in, the red-wine trigger is already visible — a conversation the GP can act on.

Methodology

The PDF uses the shared branded template. The title strip runs across the top with an optional patient-name field. Below sits the main table with six columns sized to fit the type of content each will hold: date narrow, symptoms wider, severity narrow (single or double digit), triggers and actions roughly equal, notes wider. Row count selector sets how many entry rows print before the page ends.

Tips for keeping the diary useful

• Fill it in the same day — severity ratings drift fast.
• Be specific in the symptoms column; "feeling off" teaches you nothing later.
• Use a consistent 1-10 scale — write down what 5 means to you on the first row and stick to it.
• Review the diary weekly, not just before appointments. Patterns are easier to spot mid-block.
• Take the completed sheets to medical appointments rather than summarising from memory.

Designed for A4 and US Letter printing

Both paper sizes are supported. A4 is common in the UK, EU, and most of the world; US Letter suits printers in the US and Canada. Both print the table without clipping.

Common use cases we see

Over the past year, the most common reasons people print a symptom diary are migraine tracking (food, sleep, and stress triggers), IBS and food-sensitivity investigations (the diary paired with a separate food log), endometriosis cycle tracking, long-COVID symptom clustering, asthma trigger identification, and general mood and anxiety pattern-spotting. The diary is deliberately generic because chronic conditions rarely stay in one lane — a good log handles sleep, pain, energy, and mood on the same page rather than forcing you to keep four logs at once.

Note on medical use

This diary is a record-keeping tool, not a diagnostic one. Share it with a qualified clinician for interpretation and advice.

Related health trackers

• Weekly Sleep Tracker — pair with symptoms to spot sleep-linked flares.
• Daily Water Tracker — hydration often correlates with headache frequency.
• SMART Goals Template — set a clear treatment or review goal.
• Planner Builder — build a custom page that includes symptom fields.