I just had one and during the height of it, it was impossible to convince me that this would pass. My chest felt like it was on fire, limbs are tingling, my head felt totally weird (don't know how to describe it), I was shaking, more than anything in the world I wanted to crawl out of my own skin, and it felt like I was going crazy. My parents tried to talk me down from it but they struggled.

What works for you?