Lena had undiagnosed postpartum depression during 'GOT' shoot

Actress Lena Headey has revealed that during her first season of filming "Game of Thrones", she was suffering from undiagnosed postpartum depression.

The 43-year-old star, who plays Cersei Lannister on the hit HBO drama series, said filming season one right after giving birth to her first child was "really horrendous", reported Net-A-Porter.

"I was postnatally depressed but I didn't know it. I saw a doctor for the medical check, and I just burst into tears. She said I was postnatally depressed and I went, 'Am I? Why is that?'" Headey said.

"I saw a great guy and he sorted me out, but I did the first year (on Game of Thrones) in that space, figuring out motherhood and going through a weird time personally. It was tricky," she added.