The Libyan dictator Col. Muammar el-Qaddafi supplied Semtex to the Irish Republican Army paramilitary group during the conflict, and victims of the bombings have long campaigned for the British government to release more than $12 billion in frozen Libyan assets — currently being held in Britain — to compensate the victims.

Mr. Holbeach says that beyond obtaining justice, he could use the money for private medical care after he was left injured by the bomb. About 5 percent of Northern Ireland’s health budget is spent on mental health, half of the 13 percent allocated in England.

Last month, Northern Ireland’s Department of Health published a suicide prevention plan that aims to reduce the number of suicides 10 percent over the next five years, but experts worry that there is not enough funding to fully implement the strategy.

A culture of silence around the conflict has also contributed to the issue, as many of the victims are reluctant to ask for help.

“It wasn’t safe to speak about so many things,” said Roisin Martin, who worked as a nurse during the conflict. “Even if you recognized that you needed to, you didn’t know who anyone really was or what their beliefs or involvement was in the paramilitary world.”

Many people would not confide even in their families and friends or share details of the atrocities they witnessed on a daily basis. In some cases, experts found that parents could transmit their post-traumatic stress to their children, even if the child had never experienced a traumatic event.