So what are your clear symptoms of PTSD?

I have been diagnosed with PTSD, although it's still hard for me to believe it. I feel like the "trauma" I experienced was so much less than what a combat veteran or beaten wife or molested child goes through. I was in an emotionally abusive relationship for three years. I think the most damaging aspect was being discarded over and over again: we went through the honeymoon - tension - incident - reconciliation cycle well over twenty times in that period. In any case, here are the criteria I meet.

1. Exposure: Direct experience of traumatic events
   
2. Re-experiencing the events via:
   
   
   • Thoughts or perception
   • Dreams
   • Delusions, illusions or hallucinations
   • Intense psychological distress or reactivity to cues that symbolize some aspect of the events
3. Avoidance and Numbing
   
   
   • Avoidance of thoughts, feelings, or conversations associated with the events
   • Avoidance of people, places, or activities that may trigger recollections of the events
4. Negative alterations in cognitions and mood
   
   
   • Persistent and exaggerated negative beliefs about oneself, others, or the world
   • Persistent, distorted cognitions about the cause or consequences of the events
   • Persistent negative emotional state
   • Markedly diminished interest or participation in significant activities
   • Feelings of detachment or estrangement from others
   • Persistent inability to experience positive emotions
5. Alterations in arousal and reactivity
   
   
   • Irritable behavior and angry outbursts
   • Reckless or self-destructive behavior
   • Hypervigilance
   • Concentration problems
   • Sleep disturbance
6. The duration of symptoms is more than 1 month
   
7. The disturbance causes clinically significant distress or impairment in functioning
   
8. The disturbance is not attributable to the physiological effects of a substance or other medical condition (although the substances I have been using to cope are definitely exacerbating the problem).

The worst of my symptoms is my trigger. If someone talks about it more than just in passing (which is still uncomfortable), I completely lose touch with reality. I stop being able to trust people just because of it even though it's something common enough that I hear about it or see it no matter where I go.

I guess reacting so strongly to it is hyperviligence. I haven't seen any of my friends in weeks because I'm afraid of it. So that's the avoidance. My other symptoms are not so bad.