I get like this where nothing sounds appealing after the flu. Might take you couple more days before your appetite returns.
When I was a kid, I came down with the flu at my grandmas's house and I vividly remember puking up orange Kool Aid. To this day, I despise just about everything orange flavored..that includes candy, soda, popsicles, orange juice.
My sister was like this with Pizza Hut pizza. She will not eat pizza from there, but everywhere else is ok....weird huh? LOL.