Summary: You’ve heard of lactose intolerance, but have you heard of histamine intolerance? A misdiagnosis could inflame the real problem. If you are experiencing Hypertension , Dizziness, Headaches, Irregular sleeping pattern ,Arrhythmia (accelerated heart rate), Anxiety Nausea and vomiting, Flushing, Abdominal cramps , Hives, Fatigue, Watery eyes, you could be dealing with a histamine intolerance: