Here is a list of some of the symptoms of PTSD:

Nightmares (also kicking, shouting and thrashing while asleep)

Flashbacks (re-experiencing the event, often unspoken)

Persistent daily thoughts about traumatic events (too cautious?)

Persistent memories of those events (often unspoken)

Emotional numbness

Trouble feeling affectionate

Startling easily

Irritability

Aggression (sudden bursts of anger or fear)

Sleeplessness

Gaining or losing weight

Depression (moody, seem to brood, etc.)