Gratitude?
Seriously it's probably just lumped in with Post Traumatic Stress. It's such a catchall phrase it's perfect. You could try ASR (Acute Stress Response) for variety.
That's the problem, everyone love acronyms and diseases don't get the long names they once did. Whatever happened to Flesh Eating Necrosis? I'll tell you the name was too long! So it was replaced with Ebola Zaire. Again too long so we then had SARS as the disease that would kill us all. Notice that when discussing the bird flu, which will kill all mankind tomorrow if not sooner, people keep calling HN-71 or whatever.
It's a damning indictement of modern media, love of acronyms, short attention spans and...
I was typing about something. What was it?