For years I thought I suffered from "traveler's diarrhea." I would have problems when ever we went a way from home even if we went 1 state away. I just couldn"t drink the water any where. I even had problems if I ate pasta cooked in the local water. Now the problem is getting worse. I get diarrhea from diet soda, alcohol,salad bars,juices,etc. Could this be IBS?
It looks like you need to read the "Worth Reading for IBS'ers" Thread at the top of the list of Threads. It will talk about the Rome Criteria for diagnosing patients with IBS. That way you can be the judge.
But, from what you've said, it does sound like IBS. However, you should probably consult with your GP, because IBS is a general term used after all other disorders and illnesses have been tested for and show negative. i.e. It is a disorder that is diagnosed by exclusion.
You may want check into Fructose Intolerance. I have had problems like that for the past 7 years and finally had a doctor suggest that testing. Turns out, that is the problem and now I have no more problems. I hope you find some sort of answer, it's rough to go through.