Take the test:
http://www.adaa.org/GettingHelp/SelfHelpTests/selftest_PTSD.asp

How Survivors Define PTSD

People who struggle with PTSD know best what it’s like to live PTSD from the inside out. In their own words, here’s how survivors explain it (not all of these need to be true for you to have PTSD!):

I am unable to accept and process what has happened.

PTSD is all about being STUCK. Stuck in the moment of horror, unable to move past it. The feeling is very much like being trapped in a nightmare, unable to wake up; or like a computer that’s “frozen” and incapable of functioning.

A ‘fracture’ in your experience of life, caused by a traumatic event. This fracture is caused in your mind, by you (and no one else). It’s a response for attempting to cope with what happened. But unfortunately, its an ill-informed response. And its one that makes you feel like something is being done ‘to you’ instead of what’s really going on, which is that your own mind is causing you to re-live your trauma over and over again.

A sense of being STUCK in the trauma, like being in a nightmare and unable to wake up.

Feeling physically and emotionally exhausted, depleted by trauma.

Easily overwhelmed by life, often unable to function, even at performing simple tasks, like a bogged-down or “frozen” computer.

A seriously curtailed life due to instinctive “guarding” behavior, through avoiding situations/people that could cause further trauma or a trigger.

Unbearable emotional pain, i.e.: debilitating depression, overwhelming, paralyzing anxiety, and terrifying rages that may induce fear of “becoming like the abuser.”

A sense of having no personal identity.

Psychological and physical symptoms, such as an extreme Startle Reflex, Recurring Nightmares, Flashbacks, Phobias, and Disturbed Sleep Patterns.

PTSD is, in a nutshell, not being able to differentiate in your mind the past, present and future.

In the present, people, situations, smells and noises merge and trigger into those things from the past.

PTSD… is being frozen and waiting for the sun to rise.

Being stuck in a fog..and sometimes even like sinking into a dark abyss.

From:
http://healmyptsd.com/education/do-i-have-ptsd