just don't eat

I asked the nurse practitioner at my GI office "How do your other patients who have symptoms like this handle it? I mean, what do they do so they aren't tied up in the bathroom all morning or passing out from cramping? How do they manage to even get out of the house and get to work?"
She said: "Well, some of them just avoid eating all day" then after looking at my face and perhaps seeing the sheer horror on it, added "Which of course isn't an ideal solution..."

"Isn't ideal"? Are you fucking kidding me?