When people give you compliments, do you think that they must be mistaken? Rather than celebrating your successes, do you feel like a fraud and wonder when you'll be 'found out'?
If so, you're not alone. In fact, no one is really immune from so-called 'imposter syndrome' - the buzzword to describe the issue of people finding it difficult to accept their own accomplishments.
However, this issue is more likely to affect high-achieving women. Take Oscar-winning Kate Winslet, who admitted: "I'd wake up in the morning before going off to a shoot, and think, I can't do this; I'm a fraud." Or the late author Maya Angelou who once said: "I have written eleven books, but each time I think, 'uh oh, they're going to find out now."
And if a Hollywood actress or a Novel Laureate can feel like this, it's not surprising that the rest of us can too. To the outside world, you may seem confident and uber-capable. You may be the sole breadwinner in your family or hold positions of high responsibility at work.
Yet you find yourself secretly thwarted by self-doubt.
Although many women are affected by this problem at work, it can affect all areas of their life. They feel like they're not a good enough mum or friend - or that their appearance isn't up to scratch, even if other people say differently.
Crippling self-doubt can prevent you from enjoying your successes and your life in general. It may cause you to be overly anxious about achieving things that are well within your capabilities. But there are ways to stop that nagging voice in your head, telling you that you're not good enough.
Read on for 5 imposter-fighting tips