I first posted we were having a vomiting epidemic. Then I posted Bo wouldn't quit throwing up, and thought maybe it wasn't an epidemic, but just Bo. Bo was in bed with us this morning and I heard a cat either vomiting or passing a hairball. I get up, and sure enough more vomit!! So, it isn't all just Bo. Now I'm confused wondering if there really is something going on and that was Bo's problem after all. We stopped her antibiotics and so far this morning no vomiting from her. We haven't changed foods, litter brands, or been giving them any table scraps, so I don't know what to think now?????????