I'm a C-suite exec at PwC who still struggles with imposter syndrome. Here's how I manage it.

• J.C. Lapierre is the US chief strategy and communications officer at PricewaterhouseCoopers. 
• She writes that her career wouldn't have been possible if she had given in to imposter syndrome. 
• Lapierre offers advice like ask questions, and power pose when you feel like an imposter.  

You know the feeling.

Your breathing gets a little shallow, your heart beats a little faster, your stomach begins to churn — and the panic sets in. I don't know what I'm doing. I don't belong here. Hellooo, impostor syndrome!

It flares up every time I take on a new role at PwC — I've had about five different careers within the firm so far — and if I'm being honest, it happens in many small moments in between these bigger ones, too.