At least four million Britons suffer from debilitating toilet phobias and most are too embarrassed to seek help, the National Phobics Society (NPS) said.The NPS, which works with people affected by anxiety disorders, has classified the "secret" problem of toilet phobia as an anxiety condition in its own right and is launching a new campaign to help sufferers. Toilet phobias range from a mild dislike of public loos to obsessions where sufferers refuse to leave their homes or even undergo potentially life-saving medical examinations. The NPS said extreme sufferers are often unable to leave their homes, deny themselves fluids which...