I deal with anxiety and panic also .. I do often get the overwhelming doom and gloom and the inability to move or breathe, I shake but cant control it. Sometimes its a min or so and then other times its 5-10 mins of pure hell.. I am also unable to do more than whisper if even that, So i hear what your saying... I have yet to find a way to stop it.. even my T and Pdoc dont have much to offer except to explain that a very small % of people go through this.

I had a full heart work up and MRI of my brain to make sure it wasnt anything physical , everything came back more of less " normal" so its just something I have to deal with. sucks

Its horrible. Sorry you suffer from this shyt.