<prompt> True about Anorexia nervosaIs more common than bulimiaCan have a low T4 in the presence of a normal T3May have a hypochloremic hypokalemic alkalosisIs associated with constipation more commonly than diarrhea  <response>: Is associated with constipation more commonly than diarrhoea T3 is more o en low with an apparently normal T4. Diarrhoea may occur with laxative abuse but constipation is commonest with inherent hypomotility of the gut. 