the day after you've had the flu.
I had the flu yesterday and was totally craving tacos after I saw a recipe in my inbox for south american tacos with a green avacado sauce. So last night I had dh pick me up a pack of tacos from Taco Bell. This morning, guess what I had the first time I could eat since being sick? Sadly, yes, a couple of tacos.
Then I went to the gym to work out and didn't last very long.
Next time I should just have some shredded wheat or something and take a few days before hitting the gym again.