Those pains definitly sound like the pains that most of us get around here. If you've already done the tests to rule out everything else, I would definitly recommend buying Heather's books. I remember when I was first diagnosed and my doctor didn't really explain to me what it was. I bought Heather's books and throughout the whole thing, kept thinking "hey.. that's me.." or "that's why I'm feeling like this..."
Otherwise, definitly stick around the boards as we are constantly helping each other with the daily battles of IBS. I've been on here for almost 6 months and am still learning new things every day.