Take our Mould Symptom Quiz

If you’ve been feeling “off” — tired, foggy, inflamed, or constantly unwell — and can’t quite explain why, it could be more than just stress or bad luck. Mould illness often hides in plain sight, mimicking other conditions like anxiety, IBS, allergies, ADHD, and fatigue. Our quick, evidence-based Mould Symptom Checker is designed to help you spot the patterns early and take the first step toward answers.

 FAQs

  • Mould exposure can affect multiple systems in the body. Common symptoms include:

    • Brain fog

    • Chronic fatigue

    • Sinus or respiratory issues

    • Skin rashes

    • Hormonal changes

    • Mood swings, anxiety or depression

    • Digestive issues like bloating or food sensitivities

    • Increased thirst or frequent urination

    You can view the full list inside the quiz.

  • Yes. People with certain gene variants - like MTHFR, HLA-DR, or GSTM1 - may detox mould toxins less effectively. This can lead to chronic inflammation, poor recovery, and a longer-lasting illness even after exposure ends. Our quiz asks about this and links to trusted DNA testing options.

  • A high score means your symptoms may be strongly linked to mould exposure. You’ll be shown resources for getting tested, how to talk to a mould-literate doctor, and how to support your body during recovery.

  • Start with:

    • A visual inspection (look for water damage, musty smells, condensation)

    • A mould test (DIY or professional options available)

    • Opening windows, running a HEPA filter, and reducing humidity

    We also recommend checking out our home mould guide and trusted products.