Mast Cell / Histamine Checklist

Could this be driving your symptoms?

⚠️ COMMON HISTAMINE SYMPTOMS

• Brain fog or head pressure

• Anxiety, panic, or “wired but tired” feeling

• Heart palpitations or rapid heart rate

• Flushing, itching, hives, or skin sensitivity

• Headaches or migraines

• Chronic fatigue

• Poor sleep (especially waking 2–4am)

• Dizziness or imbalance

🍽️ FOOD & GUT SYMPTOMS (HISTAMINE INTOLERANCE SIGNS)

• Reacting to healthy foods (avocado, spinach, fermented foods)

• Symptoms change day to day

• Alcohol intolerance (especially wine)

• Bloating, diarrhea, IBS symptoms

• Increasing food sensitivities over time

🔥 COMMON HISTAMINE TRIGGERS

• Stress triggers symptoms quickly

• Heat, exercise, or hot showers worsen symptoms

• Sensitivity to smells, chemicals, or environments

• Seasonal allergies or chronic sinus issues

• History of mold exposure, Lyme disease, or infections

🌸 HORMONES & HISTAMINE CONNECTION

• Symptoms worse before your period

• Changes after birth control

• Symptoms worsened during perimenopause

• PMS feels inflammatory (not just emotional)

Key insight: Estrogen increases histamine, and histamine increases estrogen → symptoms can spiral

🧬 PATTERN RECOGNITION (MCAS / HISTAMINE)

• Normal lab results despite symptoms

• Told it’s “just anxiety”

• Antihistamines provide relief

• Body feels reactive to everything

🚨 WHAT YOUR SCORE MAY MEAN

• 0–3 symptoms → less likely histamine-related

• 4–8 symptoms → possible histamine involvement

• 9+ symptoms → strong pattern of mast cell activation / histamine intolerance

💡 NEXT STEPS FOR HISTAMINE INTOLERANCE

• Reduce histamine load (diet + environment)

• Support gut health and detox pathways

• Stabilize mast cells (not just block histamine)

• Address hormones, infections, and inflammation