Pb?

Just when I think I have everything under control, I got sick last nite. I'm used to the sliming ... no big deal, but I threw up. The only thing I had different was homemade (at a cafe) clam chowder for lunch. I was expecting smooth and creamy but it was rather chunky and the clam were a bit gritty. I couldn't eat very much of it and put the rest in the frige. After dinner, ugh. This morning, I still have an upset tummy, a headache and sore muscles. Maybe I just have a bug?