My worst attack was actually about 4 or 5 years ago. And, it was so bad that I hardly remember it. I literally blacked right out. I half remember waking up in the hospital hooked up to an I.V. (dehydration). The last thing I remember was trying to sip some gatorade after a round of D & vomitting. My mother found me in my appartment.
I have had attacks so bad that I have been dehydrated, so...Nelly you are totally doing the right thing with the Gatorade/chicken soup/saltines. It's funny, but veg. or chicken broth really restores me after a huge evac. I find, though, that dry rice krispies or rice crackers stay down better for me. A banana would launch another round of attacks. Ditto for applesauce. But rice krispies work.