I have severe IBS and my symptoms are unlike yours. From what you are describing, it sounds more to do with your stomach than intestines (bowels). IMHO - if this is something that started suddenly and not something you have had chronically - I would see a Doctor. There are so many things that it COULD be, and of course it might just have been a "bug" that hopefully should be OK by now. PM me if u wanna really talk about IBS issues - might be alittle graphic for here ............ewwwwwwwwwwwwwwww. Hope you feel better soon !