What do you eat when you have a stomach bug?
When I'm sick, I'm sick. I'll eat whatever my stomach will tolerate. I had a three day stomach bug earlier this year. Ate nothing the first day. The thought of food made me nauseous. Drank a lot of diet ginger ale. Second day, I ate ginger snaps, because that was absolutely the only thing that didn't make me want to throw up. By the third day, I was going back to my normal foods, but still eating very little.
You won't die if you don't eat for a few days or don't hit your protein goals. Above all, stay hydrated.