Is shell shock/battle fatigue/PTSD a relatively modern condition

Is shell shock/battle fatigue/PTSD a relatively modern condition? Are there any documented examples from before WW1? - Quora

etymology - What causes the euphemisation of medical terms? - English Language & Usage Stack Exchange

History of PTSD and Trauma Diagnoses - Shell shock to the DSM

Shell shock - Wikipedia

History of PTSD and Trauma Diagnoses - Shell shock to the DSM

PDF) PTSD and the War of Words

History of PTSD and Trauma Diagnoses - Shell shock to the DSM

Is shell shock/battle fatigue/PTSD a relatively modern condition? Are there any documented examples from before WW1? - Quora

PTSD: Only the name has changed