Hi you two.
It's unfortunate to see that both of you are still having a hard time.
Terry, it's good to see you're practicing the techniques and trying as hard as you can to resist the urge to take a deep breath. Don't give up and be patient, eventually your body and mind will retrain itself, along with a newfound confidence over the disorder (air hunger bother you as much), and you'll begin to feel better.
Also, periods of stress are like fuel on the fire. Terry, considering what you've told us regarding the death of your mother and the concern you have for your child who you've said is exhibiting symptoms of a developmental disorder, I would think these stressful events are contributing heavily to your disorder. Not sure why the psych chose to focus on your marriage in lieu of these other powerful stressors. Any decent living person would be affected by these things.
From a psychological perspective, I really believe that for anxiety suffers, when something isn't going right in our lives, when we feel unsatisfied, unfulfilled, when things are not what we want them to be, when we lose a loved one, when life just feel "wrong", our bodies and minds respond with anxiety - our flight or fight defense system is perpetually activated, because there is a threat, a dread filled anticipation of living a life that we believe we have no control over, which is deviously reinforced by being constantly anxious, thus we lose more control.
So what happens is now we're afraid of both the future (worrying about old age, death, death of loved ones, whether or not we'll ever achieve our goals and realize our dreams, our spouse, our children's future, etc, etc, etc, ad infinitium) and approaching that future while plagued with anxiety. A nasty, self-contained, mentally destructive spiral.
Remember, I'm not purporting this to be the root cause, this is from a psychological perspective, and of course there's people who are otherwise content, but mysteriously afflicted. But after nearly 8 years of enduring this, augmented by countless random nights of sucking strangers' s, I've come to believe that a fundamental dissatisfaction with life, whether conscious or subconscious, is a strong cause of anxiety.

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