I, too, suffer from this most disabling disease. Psych said mine was a form of autism. I urge you to find a comfortable Psych and work thru this, even try the meds, If one doesn't you will miss out one the greatest Joy's life has to offer and everyone deserves a great live.
We, who suffer from this, just have to dig in , find a Psych and fight for it.
I want to encourage you to keep working with a good therapist and consider medical intervention. One thing that I think is important is that not everyone deserves an explanation. If it is your family or someone close to you, find a time when you are not extremely anxious and have a frank discussion. I think you will be surprised by their response. It helps them to know the underlying situation and what triggers it. If you work with a good therapist, you can start taking baby steps. But don't be afraid to show yourself some grace.