WATCH: Prince Harry Reveals His Biggest Secret As Part Of The #FeelNoShame Campaign

Prince Harry has revealed he suffers from ‘crippling nerves’ and anxiety before having to address large crowds, in a video secret he released as part of the #FeelNoShame HIV campaign. Speaking as part of an awareness drive to reduce the stigma surrounding HIV, the prince added that he was worried his admission would cause more people to watch him following his confession. Speaking out about his anxiety, Harry said: "Despite the fact I laugh and joke all the time, I get incredibly nervous, anxious actually, before going into a room full of people when I'm wearing a suit." Prince Harry and brother William have been long time supporters of the Sentebale Charity The video marks an effort by charity Sentebale, which helps vulnerable children from the African nation Lesotho, to speak out and discuss their health concerns with other. The #FeelNoShame campaign asks for members of the public to share their secrets, including the hashtag, and to start an online discussion on health concerns with emphasis on HIV. The prince adds that this World Aids Day would be turned into "a day in which noone should feel any shame about their secrets". "Myself and many others will be sharing secrets of our own throughout the day, and we are asking everyone else to do the same.” Video via Sentebale Charity