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Seafood poisoning Ciguatera struck keen fisherman Jeff Herman and left him depressed, sweating, and his skin crawling for months. He says however that the fish was some of the best he had ever tasted - but why is this? To find out, the ÃÛÑ¿´«Ã½'s Kent De Pinto also spoke to Dr Lora Fleming, an expert in shellfish poisoning, who explains how the fish became toxic - and why it skews a person's sense of hot and cold. (Image: Hand holding melted ice cream cone. Credit: Loic Venance/ Getty Images)