It is possible that you are itching due to a Histamine overload, eating seven chicken livers and a full Perch fish would push up you blood histamine levels as they contain a lot of natural histamine. The ingestion of which could conceivably give you a histamine surge and make you feel very itchy if not vomit! Cold Urticaria would cause a localised hives-like rash at the point of exposure to the cold.
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