So my dad had a horrific childhood abused in every possible form including needing a lock on his bedroom to keep his father out in the middle of the night.
He never sought real help except for his drinking and he has been sober since I was 5 so about 30 years

What I wonder about is symptoms. Loud noises, crowded places, even a tiny bit of noise makes him lose it. Traffic makes him become a nut as well as people in his house, idk just everything makes him lose his marbles. He is a good caring guy but the older I get the more I worry that all his pent up stress is going to kill him. He's admitted to paranoia ( ongoing)and flashbacks when his parents died
Is this all reactions from his trauma?.