Danny Johnston, 35, (pictured) was found hanged last May after suffering with PTSD since he was discharged from the army
Prince Harry and Meghan have made a vow to a grieving mother to help servicemen and women who are struggling with PTSD.
Viv Johnston, 62, saw the destructive effects PTSD can have first hand when her son, Danny Johnston, 35, killed himself last year.
The royal couple invited Viv, from Bognor Regis, West Sussex, to meet them before the military Endeavour Awards in London last week.
Danny had been struggling to cope with PTSD and spiralled into a depression after he was discharged from the army when police found him carrying Valium tablets.
Viv said he was self-medicating with them because he feared he would be discharged if the army thought he had mental health issues.
Prince Harry, 34, who is himself an army veteran, had previously written to mother-of-three Viv when Danny was found hanged last May.
Viv Johnston, 62, was invited to speak to Prince Harry and Meghan before the Endeavour Awards last week after Harry wrote to her when her son, Danny, killed himself last year
Prince Harry (pictured at the Endeavour Awards) had previously written to Viv last year when Danny's hanged body was found
The royal couple stayed talking with Viv for so long that the awards ceremony had to be delayed
Viv said, 'Harry was very sympathetic to what is currently going on with veterans and the problems of suicide,' in an interview with the Mirror.
The royal couple and Viv stayed chatting for so long that the Endeavour Awards ceremony ended up being delayed.
She said: 'Three very panicked blokes came in at one stage and said "Sir, we have to go, people are waiting" and he said "well, I’m talking".'
Since leaving the Army in 2015, the Prince has focused his work on the creation of the Invictus Games and Heads Together - a campaign which seeks to
