When the body is unable to break down histamine properly, it can lead to a range of symptoms. Keep in mind that symptoms can vary among individuals, and not everyone with histamine intolerance will experience the same set of symptoms.
Common symptoms:
Headaches: Histamine can cause blood vessels to dilate, leading to headaches and migraines.
Flushing: Histamine can contribute to the dilation of blood vessels, causing redness and flushing of the skin.
Hives (Urticaria): Raised, itchy welts or hives on the skin can occur as a result of histamine release.
Respiratory symptoms: Sneezing, runny nose, congested nose, coughing, shortness of breath, wheezing.
Digestive symptoms: Abdominal pain, bloating, diarrhea, constipation, nausea.
Fatigue: Some individuals with histamine intolerance may experience fatigue or a general feeling of tiredness.
Irregular Heartbeat (Arrhythmia): In rare cases, histamine intolerance may contribute to irregular heartbeats.
Anxiety and Dizziness: Histamine can act as a neurotransmitter and may contribute to symptoms such as anxiety, dizziness, or lightheadedness.
Menstrual Symptoms: Histamine intolerance may exacerbate symptoms associated with the menstrual cycle, such as cramping and breast tenderness.
Difficulty Regulating Body Temperature: Excessive sweating or feeling excessively hot or cold.