"A student was forced to drop out of university after a bizarre case of chronic déjà vu left him unable to lead a normal life.
The 23-year-old even stopped watching TV, listening to the radio, or reading newspapers or magazines because he believed he had seen it all before.
He told doctors that he was "trapped in a time loop" and said he felt as if he was reliving the past moment by moment.
Details of the case have been revealed in a report published by the Journal of Medical Case Reports.
Doctors are baffled because the man does not suffer from any of the neurological conditions usually seen in people who normally suffer frequently from déjà vu - which is French for "already seen"."