Have You Got 'Selfitis'? Take the test that helps you find out

A new selfie museum has opened its doors in LA. Suzanne Harrington grabs her phone and takes a look.
In London recently, visiting the grave of Karl Marx in Highgate Cemetery and the gloriously cheesy impromptu memorial garden set up by fans of late local resident George Michael, I realise with a jolt that I have left my phone elsewhere.