Brightsky -
I thought I was lactose intolerant and I was diagnosed with IBS, also, while I was still drinking. My gut is fine now, and I can pretty much eat whatever I want. The only thing that bothers me sometimes is fried food, but I think that's more from age. Most people I know my age complain of the same thing.
Gee, who knew pouring poison into our bellies day after day could mess up our bowels??