Past-life PTSD
(ie. PLPTSD or post-death traumatic stress disorder (PDTSD)

Severe trauma that someone carries with them from a traumatic event/s, in their previous life into the afterlife or their next life/lives.

(To be clinically diagnosed with PLPTSD, one needs to have around several symptoms of PTSD, beyond death/longer than a life-time).
'The Roman soldier had a terrible case of past-life PTSD: He had witnessed his fellow comrades being most brutally tortured/displayed by the vile barbarians, in a forest clearing, within The Teutoburg Forest, at night-An event so traumatic that the memory of it was permanently engraved into his soul and he had continously experienced symptoms of PTSD (e.g. self-harm, suicidal thoughts, repeated flashbacks, paranoid delusions, prolonged grief, rage outbursts, trauma-related stimuli avoidance, etc.), even beyond death/in his next-life.'