>> the duchess of cambridge left the hospital this morning with her husband, prince william, after four days of treatment for severe morning sickness. that hospital is dealing with the fallout of an embarrassing prank call that almost got through to her room. >> good morning, how may i help you? >> hello, i'm just after my granddaughter kate. i want to see how her little tummy bug is going. >> mummy, mummy -- >> she's getting some fluids to rehydrate her. >> so when is a good time to come and visit her? because i'm the queen so i need a lift down there. >> michelle, let's start with the duchess's condition and how she's doing, at least what we know so far. >> we don't know that many details other than unfortunately what was revealed in that prank phone call but it was nice to hear from kate herself today. she actually responded to the press when people yelled out