Death by Fish?

I suspect I have been poisoned by food. Raw, fish like food to be exact... or, to be ambiguous. Saturday night I experienced "real sushi" for the first time, at a restaurant that will not here be named, but it was good; I liked it. Then, this morning, as I turned onto 75th and hit that rut in the road--for about the 75th time-- a sickly feeling started growing in my stomach and continued growing until I returned home from school. Now, I'm not positive it's food poisoning (how food poisoning could be positive, I have no idea.) But all I know is that I felt like an apple was stuck in my throat, parasites were swimming in my stomach, and i was so nauseated that any perfumed fragrance made me want to hurl. (The locker room after dance class was horrible; all the girls were spritzing themselves with body spray. It sent my head spinning.) I'm feeling better now, but boy did I learn my lesson: Don't trust raw fish no matter how many posters in the restaurant say "No worry, it good for you."