Princess Diana's ex-bodyguard who is suffering from post-traumatic stress disorder (PTSD) wants to work with Prince Harry.

Ex-royal military police officer Lee Sansum, 56, used to be the late Princess of Wales' bodyguard. According to him, he guarded Princess Diana and her two sons, Prince William and Prince Harry. However, he was scarred by his experiences in Northern Ireland.

Once, he smashed a hole in his wardrobe with his foot thinking that a terrorist was hiding there. Sansum wished to talk to Prince Harry and work with the royal in raising awareness of this devastating mental health condition.

"PTSD is like a dark cloud. It can be triggered by anything, like a smell or a time of year," Sansum said (via Daily Star). "There were a few near misses and incidents where you think, 'I could have died there, that was a close shave' — like being next to a bomb that's gone off or seeing some of your friends blown up and being shot at."

Sansum only realized that he was suffering from the said mental condition when his wife confronted him about his thrashing" "screaming" and "fighting" in his dreams. At the time, he wanted to help Prince Harry create a 24-hour call center for veterans with PTSD.

Sansum is working to control his symptoms and has set up his own veterans support group. With his fellow veteran Major Joe Sheppard, they put up a group called Improve Your Lifestyle with Lee and Joe.

Prince Harry is dedicated to helping veterans, The Duke of Sussex is the patron of Invictus Games an international adaptive multi-sport event that aims to help wounded, injured and sick armed services personnel by letting them take part in sports including wheelchair basketball, sitting volleyball and indoor rowing.

The Duke and Duchess of Sussex are set to fly to Australia in October for the Invictus Games in 2018. For the said trip, Prince Harry and Markle will reportedly stay at Villa del Mare,  multi-million dollar waterfront home. The mansion features six bedrooms, a private butler's residence, wine cellar, gym and infinity pool.

In related news, according to Dickie Arbiter, the said upcoming engagement will serve as a "real baptism" for Markle. The couple is expected to have a demanding schedule and the eyes of the world will be on her.