I've never served in,or near,combat so I can't speak from personal experience.However,my sister-in-law's father was a WWII vet and he had it.She didn't tell me,at least,the stories until after both he and her mother died.Nightmares...crying spells...fears.He was a great guy and managed to make a good living for his family but he did suffer...both in Europe and after he got home.
Do some guys try to scam the system? Probably.But if you're trying to claim that all such claims are phony I'll have you talk to my s-i-l.
Just sayin....
Sure, shell shock is real. But the WWII vets had to come home, get a job, and get on with life, generally self medicating with alcohol.
Now, it has morphed into PTSD which has become a financial windfall for veterans and the medical profession that’s really doing very little to help them.
Yell “Trump” on a college campus, and half the students will be claiming PTSD benefits.
So yes, Shell Shock is real. PTSD is a scam.