Symptoms:

Symptoms of PTSD fall into three main categories:

1. "Reliving" the event, which disturbs day-to-day activity

• Flashback episodes, where the event seems to be happening again and again
• Repeated upsetting memories of the event
• Repeated nightmares of the event
• Strong, uncomfortable reactions to situations that remind you of the event

2. Avoidance

• Emotional "numbing," or feeling as though you don't care about anything
• Feeling detached
• Being unable to remember important aspects of the trauma
• Having a lack of interest in normal activities
• Showing less of your moods
• Avoiding places, people, or thoughts that remind you of the event
• Feeling like you have no future

3. Arousal

• Difficulty concentrating
• Startling easily
• Having an exaggerated response to things that startle you
• Feeling more aware (hypervigilance)
• Feeling irritable or having outbursts of anger
• Having trouble falling or staying asleep

You might feel guilt about the event (including "survivor guilt"). You might also have some of the following symptoms, which are typical of anxiety, stress, and tension:

• Agitation or excitability
• Dizziness
• Fainting
• Feeling your heart beat in your chest
• Headache

Signs and tests:

There are no tests that can be done to diagnose PTSD. The diagnosis is made based on certain symptoms.

Your doctor may ask for how long you have had symptoms. This will help your doctor know if you have PTSD or a similar condition called Acute Stress Disorder (ASD).

• In PTSD, symptoms are present for at least 30 days.
• In ASD, symptoms will be present for a shorter period of time.

Your doctor may also do mental health exams, physical exams, and blood tests to rule out other illnesses that are similar to PTSD.