I'm the husband. Checked all kinds of things in regards to it at the time because of past health problems but none of that seemed to be the cause. It would seem it was dehydration or low electrolytes since I've felt ok since urgent care. No to just deal with the gas pain that keeps building up...
I wondered the same thing and also wondered if the empty remnant stomach can send hunger pangs since it's always empty. It's a weird concept to think about.