Question

What was the original name of the condition where soldiers were "completely

stressed out and on the verge of nervous collapse"?

Answer 1

Shell shocked

Explanation: One such example Old George cited was the condition in combat that occurs when soldiers are completely stressed out and on the verge of nervous collapse, explaining how the term for the condition evolved from 'shell shock' to 'battle fatigue' to 'operational exhaustion' to its current term 'post-traumatic stress ..

Answer 2

The original name of that condition is Post-traumatic stress disorder.