The Shaun of the Dead and Mission: Impossible films star had previously put symptoms down to "character fault".

The Wolverhampton-born singer stars as suffragette leader Emmeline Pankhurst in Sylvia the musical.

The play explores losing a sense of purpose, the difficulty some men have talking about their mental health and the support they can find in each other.

Josh McDonald won the third season of the hit TV programme, which aired earlier this year.