Part 4 of 'Our trip to hell'. I am not blaming either the ship or its owner, Carnival, but fact is that, while healthy at the start of our week cruising to and from the Mexican Riviera, and by the end I was taken to hospital - too ill to fly home. By ‘healthy’, I mean besides multiple sclerosis that I live with all the time. This time I was tired, weak, off my food, and had a serious cough and a bad case of diarrhoea (British spelling).