For a few years now I've not been able to eat things such as all bran weetabix brown bread ect. I can eat white bread rolls ect and I have no idea why if I eat said things I end up getting horrible stomach ache bloating wind and diohreah. I also have the same trouble with prebiotic drinks my mum says I should go to the doctor but I'd rather visit the dentist . Dose anybody else have this problem or is it just me ???