Sienna Miller opens up about the so-called, 'Curse of Motherhood'.

Actress Sienna Miller appears to be the definition of perfection with her goddess-like hair, fabulous career and gorgeous three-year-old daughter, Marlowe. Yet in a recent cover interview with British Vogue, she has opened up about her transitional year, recent break up and what she calls the ‘Curse of Motherhood’.

The 33-year-old Factory Girl actress discussed how her separation from her fiance of three years and father of her child, Tom Sturridge, has impacted her year. “It’s been really quite overwhelming recently, just with the volume of everything going on,” she told British Vogue.

"Everything is shifting. It's actually been the sh*ttiest year, and amazing. It's always yin and yang. I feel like if you're excelling in one area, it's hard to manage both and I do feel like the work is going really well," she continued.

Work certainly is going well for Miller who is reported to be starring in at least four Blockbusters, set to be released over the next year. However, life isn't always glamorous for the actress and model, who has confided that she also suffers from exhaustion and sleep deprivation at the hands of her toddler.

"Obviously when you have a baby it's the most incredible experience but your life is also catapulted into this chaos and you are exhausted. I could literally get on this table and fall asleep," she explained.

Like most new mums, Miller wishes she could manage motherhood better and refers to the constant guilt in her mind as the 'Curse of Motherhood'.

"I'd like to be better at managing things; I'd like to be more super—although we're never going to feel it, even if we are," she continued.

"That's the curse of motherhood—we just run ourselves ragged. I'm just trying to get a sense of what that guilt is. I sometimes feel like it's a totally invented emotion. It's strange to be punishing ourselves this way. It's not healthy," Miller said.

Perhaps, Miller is right - there is nothing healthy about feeling guilty and running ourselves ragged over motherhood. At the end of the day, we're all just trying to do the best job we know how.

Have you ever felt guilty as a mum?