Prince Harry revealed that after ignoring the death of his mother Princess Diana for 20 years, he sought counseling to deal with the matter.
Harry, 32, said he lived in chaos for about two years because of the 1997 car crash that took his mother from him when he was only 12 years old, The Daily Telegraph reported.
The Prince told The Telegraph that he "shut down all his emotions" and was "very close to a complete breakdown on numerous occasions" even though his brother Prince William tried encouraging him to seek help.
"Look, you really need to deal with this," those close to Prince Harry told him, according to The Telegraph. "It is not normal to think that nothing has affected you."
"I can safely say that losing my mum at the age of 12, and therefore shutting down all of my emotions for the last 20 years, has had a quite serious effect on not only my personal life but my work as well," Prince Harry told The Telegraph.
"I have probably been very close to a complete breakdown on numerous occasions when all sorts of grief and sort of lies and misconceptions and everything are coming to you from every angle," he added.
The Prince said he even took up boxing to cope with the situation.
He said he’s in a good place now.
"The experience I have had is that once you start talking about it, you realize that actually you’re part of quite a big club," Harry said.
The interview with The Telegraph is the latest move by the Royal family to be more open, The New York Times said.
The two princes and Duchess Kate have started a campaign called Heads Together to raise awareness about mental illness.
Twitter users reacted to Prince Harry's disclosure.