Actress Keira Knightley has revealed that she got diagnosed with post-traumatic stress disorder (PTSD) after having a mental breakdown at the age of 22. On The Hollywood Reporter's podcast, the "Pirates of the Caribbean" star, who started working at the age of six, spoke about how her quick rise to stardom and the hectic working life affected her mental health, reported metro.co.uk.

She said: "It's amazing looking back at it from the outside - you're like, Whoa, that was hit after hit after hit! But, from the inside, all you're hearing is the criticism, really. And, also, I was aware that I didn't know what I was doing, you know? I didn't know my trade, I didn't know my craft.