I have talked with many veterans that tell me the nightmarish stories of not being able to sleep, eating disorders, drugs, alcohol, hypertension, and a wide range of other problems. PTSD is really debilitating and quite a few veterans suffer from it.
These types of problems were once called "shell shock". Today, there is a greater understanding of how to help veterans with PTSD thanks to our fathers who served in Vietnam. God bless you guys.