"Secondary and tertiary effects of post-traumatic stress related to war" for Helium (a health & fitness site) does much to illustrate the pains and symptoms of PTSD.
Trowbridge (a spiritual counselor, not a therapist) breaks it down like this:
High blood pressure and other physical symptoms
Withdrawal from society
The effect on friends and family
The potential for violence
Difficulty rejoining society
Alcohol and drug abuse
Inability to perform in social situations
Trowbridge points out that this three-tiered breakdown of effects is completely artificial. In other words, it's not a diagnostic tool, just a way for us to look at symptom/effects in meaningful clumps that tell a story of the problems PTSDers encounter.
And hopefully, once we understand, proper treatment can begin.
Worth a read.