Maybe you had partial seizures without having a tonic (or maybe you are just tired

) If that's the case, the soup may have been your culprit. I avoid soups out--so many of them have glutamate in any of it's obvious and not so obvious forms, like MSG, hydolyzed soy protein, autolyzed yeast extract, many others--all have glutamate. Even when the soup is made homemade they often add in bouillion or some kind of soup base additive, and every last one of them has MSG (I've looked for broth or bouillion at the store without and they all have it). Same thing with commercial salad dressings--they tend to have some kind of flavorings that have glutamates in them. Maybe you aren't sensitive to glutamates, but some are. It's hard to eat out but it's equally hard to never eat out!