When I am depressed I eat 3 helpings of everything... tons of junk food along with
minimum 5 chocolate bars a night (2 peanut butter o'henery's, and 3 reese cup)
it's like I'm addicted to it.. it's really weird,
The are cravings so strong that when I finally convince someone to go to the store to get it for me, I rip them open and eat 2 at one time.
It's the one thing I won't share with anyone... my chocolate
yeah but anyways... back to the point I was going to make...

I am barely 100 lbs.
When I am in my anxious state (most of the time)
I don't feel hungry... I'm not anorexic... but I don't eat
Same as you piglet I can only manage a bite or two of food, then feel sick after.

I think when we are anxious our bodies are working at least twice as hard,
therefor you could be right! we'd be using more calories when we have PTSD episodes

So I guess if you want that "model thin" look... heehee
(but seriously... do you know any good weight gain methods? my counselor suggested "Boost" drink... but it tastes horrible.)