I do and have a lot of pain, cramping and spasms, lots of bloating, gas and other issues. I have Mebeverine and Buscopan. It never seems to be particularly controllable but the meds do help. I also take probiotics on and off, just recently after a course of antibiotics for an infections. The drinks upset my stomach and I try to avoid too much dairy and I don't eat much bread anyway.
I found a lovely breakfast Activia yoghurt with honey and clusters which had probiotic stuff in them but my local shop stopped selling them which is a shame, they do a vanilla one but I'm not keen on that one. It wasn't a very yoghurt tasting yoghurt as I'm not a big yoghurt fan so it suited me.
I avoid wholemeal stuff as well as that tends to make things worse and stay away from lots of onions and stuff like that.
I do have a malabsorption condition too though.