MCAS Tracker

MCAS Tracker is a private mast cell activation syndrome diary for the condition where your immune system turns everyday life into a minefield. Log reactions as they cascade, map your personal trigger web, track every H1 blocker, H2 blocker, and mast cell stabilizer, then hand your immunologist a reaction timeline that makes the invisible visible. Built for adults managing MCAS, histamine intolerance, mastocytosis, idiopathic anaphylaxis, and the crossover with EDS, POTS, and ME/CFS. 🚨 REACTION LOGGING Capture mast cell reactions the way they hit: • Severity on a 1-to-10 anaphylaxis-adjacent scale • Flushing, hives, and angioedema • GI distress: nausea, cramping, diarrhea, bloating • Tachycardia, hypotension, and presyncope • Brain fog and cognitive dysfunction • Throat tightness and breathing difficulty • Bone pain, joint pain, and muscle aches • Post-reaction crash duration • Anaphylaxis episodes and epinephrine auto-injector use • Custom symptoms unique to your presentation 🔍 TRIGGER IDENTIFICATION Map the trigger web unique to your mast cells: • Foods ranked by histamine content and tolerance • Heat, cold, sun, pressure, vibration • Fragrances, cleaning products, smoke • Medications that destabilize mast cells • Stress, hormonal cycle, exercise intensity • Mold, VOCs, and environmental toxins • Sleep deprivation as cumulative trigger • Custom triggers you discover over time 💊 MEDICATION TRACKING Track your full stabilization protocol: • H1 antihistamines: cetirizine, fexofenadine, ketotifen • H2 blockers: famotidine • Mast cell stabilizers: cromolyn sodium, quercetin • Leukotriene inhibitors: montelukast • DAO enzyme supplementation • Epinephrine auto-injector use logging • Emergency action plan quick access • Dose changes, side effects, refill reminders 🥗 LOW-HISTAMINE DIET AND FOOD DIARY • Meal logging with histamine level estimates • Food freshness and preparation method • Reaction timing relative to meals • Elimination diet phase tracking • Safe food list building • DAO enzyme timing relative to meals 🧪 LAB AND BIOMARKER TRACKING • Serum tryptase levels • Plasma and urine histamine • 24-hour urine prostaglandin D2 • N-methylhistamine and chromogranin A • Trend graphs across months 🌡️ ENVIRONMENTAL LOGGING • Sleep quality and duration • Temperature, humidity, barometric pressure • Exercise load and pacing • Stress and hydration • Hormonal cycle phase 📊 INSIGHTS AND REPORTS • Reaction frequency, severity, and duration trends • Trigger correlations with statistical weight • Medication response curves • Food diary and reaction timing correlation • Seasonal and weather-linked patterns • PDF and CSV exports for specialists 🧭 EDS/POTS COMORBIDITY CROSSOVER • Joint hypermobility logging alongside flares • Heart rate and orthostatic vitals • Shared trigger overlap analysis ⚡ BUILT FOR REACTIVE DAYS • 30-second quick logging during a reaction • Voice-to-text when you cannot type • Calm, low-stimulation interface • Health Connect sync for heart rate, steps, sleep • Passcode and biometric lock • Offline-first with encrypted cloud backup MCAS is not allergies. MCAS Tracker treats it like the systemic mast cell disorder it is, helping you find your threshold, build a safe baseline, and give your specialist reaction-by-reaction data that tryptase draws alone cannot show. Disclaimer: MCAS Tracker is for informational and personal tracking use only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional for medical concerns.