Re: does IBS?
I know exactly how you feel. I've been living with IBS for 4 years now, and I tend to jump back and forth between extremes. I've lost a lot of weight, too--mostly because when I'm having diarrhea, I've found that my stomach will calm down if I don't eat for 24 hours.
Metamucil seems to help, though. I can't stand the drink mix, but the cookies are really good. I have also heard that people with these symptoms should get their gallbladder checked. I think your family practice doctor can do that through a blood test.