Scombroid poisoning or scombroid fish poisoning occurs after consuming fish that contain high levels of histamine. This is often seen when eating fish that has not been properly stored or refrigerated. The amino acid histidine in the fish is converted to histamine by bacterial enzymes as the fish decomposes. High levels of histamine, even toxic levels, can be present in decomposing fish even before there is a noticeable smell or taste. The reaction is similar to an allergic reaction and occurs during , immediately after eating or a few hours later. Symptoms include vomiting, diarrhea and hives. Other symptoms include: flushing of the skin, itchiness, palpitations, rash, tingling, stomach pain,…