I don't trust people. I can't feel loving anymore. All he cares about is himself, and indulging in his own misery. This symptom can show itself in difficulty sleeping, irritability or angry outbursts, difficulty concentrating, and unusually startled reactions in certain situations. I got in a lot of trouble, drinking and fighting, and I didn't really care.
People can have wide-ranging reactions to a certain stressor.
Some people will have no long-lasting effects, while on the other end of the spectrum, people can have problems that last for months or years. The symptoms must last for at least a month, however, to be classified as post-traumatic stress disorder. While symptoms usually begin immediately after a trauma or within the following few weeks, sometimes they can show up months or years later. So far, science can't predict precisely how a certain individual will react to a traumatic event. Foa's patient who was injured in the factory explosion was more vulnerable to PTSD than if he had been across the street, merely heard the bang, and only later found out about the explosion's tragic consequences.