I started with panic attacks at age 20ish. I have had most types of anxiety including avoidance behavior, etc.
Believe it or not, but as a fluke, when I found out that I had asthma symptoms (still not totally diagnosed as I may also have COPD) once I got on an inhaler-my anxiety went away immediately.
I mean, I went from not being able to do my grocery shopping-I would carry a couple of things through the store and hope the line was short-if not I might throw my items down and hyperventilate to the front door!
The next day after starting on this medication (an inhaler) I was able to get A GROCERY CART, TAKE MY TIME AND SHOP!
Now, I have no dog in this fight, just one sufferer of nearly 2 decades who finally got rid of her anxiety. I think it may have had to do with the CO2 release/non-release in my lungs.
Just another thought.
I wish you all a cure to your ills.