BD, the choice is yours really. In your current state, you would no doubt be fine for the middle east, because you need that anger and alertness. If you want to get better though, that is not recommended, because the only thing that is going to get you through in the Middle East is alcohol no doubt. You won't cope otherwise, regardless where you are in the world, you will still break, because your mind is unstable with uncontrolled PTSD. You can medicate to the hilt though, and that will get you by for a little while, but eventually your just going to come crashing down harder than present.
Healing PTSD takes a few years, no BS about it. Nobody can heal you from PTSD quickly. There are no quick fixes. You cannot be cured as such, as PTSD is a chemical imbalance within the brain, thus it cannot be undone, only learnt how to manage to enable you to live life again without all this BS that you are presently suffering.