It sucks when you experience an attack like that, especially more so when it happens when you're trying to have fun with others. I know I get angry at both myself & my ear (where I experience my Neuralgia pain) when that happens, sometimes to the point where I feel like ripping the thing off!

Anywho, sometimes all you can do is just find somewhere comfortable & try to un-clench yourself. If that includes crying or screaming or just lying on a couch, do what works.

One thing that I've found helps to relax not only me, but my mother (who injured her shoulder while working for TSA over 10 years ago) is to have someone use the tips of their fingers in a circular rubbing motion, moving across your back from your neck & shoulders down to the small of your back. Don't apply pressure, just rub lightly in small circles, moving side-to-side or up & down. Hope that will help you & I wish you luck with becoming pain free.