Hey BeachPatrol--I don't know for sure, of course, but I'd suspect that one chocolate covered pretzel may have been a "trigger" for you, and now you want MORE... of something! Most likely simple carbohydrates, sugar, chocolate... It doesn't always come on immediately--sometimes there's a delay.
Doesn't mean you "shouldn't" have had the pretzel--it's just more information for you! Lets you know what to expect--higher cravings for awhile. Just hang in there, girl!
Jay