I think we all have similar symptoms when panicking, and they truly suck, believe me I am going through it this morning.
Bakomom- I too suffer from IBS when upset or panicky, me and my friend and her family would walk the bridge where I live, it is a high bridge that goes to the beach, one person would have to be the "designated" driver, just in case one of us had an IBS emergency, which is a funny thing to have to have while walking the fastest runner was usually the designated one and all we could hope for was he wasn't the one with the flare up, but each one of us(but maybe one)that walked together had IBS, I mean what could be worse to get stuck on top of a bridge when the car is more than a mile away and have no where to go.