'I thought I was just tired from dancing then I couldn't stand by myself' liverpoolecho.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from liverpoolecho.co.uk Daily Mail and Mail on Sunday newspapers.
Libby Sunter, 20, experienced headaches, fatigue and blackouts while studying musical theatre at university - and thought the symptoms came from dancing several hours a day