Food aversion?

So we take the dog for a walk down to a local cafe.

I'm hungry.

I look at the menu, and nothing really calls to me. I think the scrambled eggs could be ok.

They arrive.

I'm suddenly not hungry.

I eat it, and its fine. But then the texture/taste/something makes me feel somewhat queasy.

I didn't finish it.

Weird and annoying.

Maybe I'll have an apple instead...