Mentioned one at a time, each symptom belongs to a different department

The flushing goes to dermatology. The stomach goes to gastroenterology. The racing heart goes to cardiology. Each one gets examined on its own, each one comes back unremarkable, and nobody ever sees them together.

The number of boxes you tick is not the point. The spread across systems is. That is the thing a single appointment almost never gets to see, and it is what this page puts in front of someone in thirty seconds.

What the three pages do

✅ Page 1 : grouped by system

Tick boxes organised by body system, so the spread is visible at a glance instead of buried in a list.

📋 Page 2 : the reaction log

A log with a column for what came before each reaction. That column is the one people skip, and the one that ends up mattering.

🩺 Page 3 : the three

The three to raise first, decided calmly in advance rather than in the first thirty seconds of the appointment.

Why the middle column changes the conversation

Most people describe reactions by what happened. Hives, flushing, the wave of nausea. What is much harder to reconstruct afterwards, and much more useful to whoever is assessing you, is what preceded it.

Heat, a meal, a scent, exercise, a stressful hour, where you were in your cycle: written down at the time, these turn a list of complaints into a pattern. Written from memory a month later, they turn into guesswork, and guesswork is what gets filed under stress.

💚 You do not need a diagnosis to use it

A great many people fill this in precisely because they are trying to get one, or because they have been told their allergy tests are clear and left it there. A written record is just as useful before an answer as after it.

Questions, answered

Is it really free?

Yes, completely. Enter your email and the PDF arrives in your inbox straight away. No card, no trial, no catch.

Does ticking a lot of boxes mean I have MCAS?

No. This is not a diagnostic test and it cannot tell you anything on its own. Mast cell activation syndrome is diagnosed clinically, with specific criteria and testing, and several other conditions produce a similar spread of symptoms. What the page does is make sure the person assessing you sees the whole picture rather than the fragment that fits in one appointment.

My allergy tests were normal. Is this still relevant?

Clear allergy testing does not close the question, and it is one of the most common reasons people stop being investigated. Our guide to what separates an allergy from mast cell activation goes through the differences in detail.

What format is it?

One PDF containing both A4 and US Letter versions. Print as many copies as you like for personal use, or fill it in digitally on a tablet or phone with any PDF annotation app.

Will I get emails afterwards?

You will receive the checklist immediately, then a short series about using it. You can unsubscribe in one click at any time.

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