I suffer with IBS although I don't always have the C or D I have constant stomach upsets, nausea and a bad taste in my mouth virtually every day. Recently my tongue has been yellow, completey white and sometimes a red stripe down the middle. I am waiting for an endoscopy to examine a throat problem, I am hoping that if I have some kind of infection that it will show up on the examination, but has anybody had similar stomach upsets that effect their tongue and taste? Is this another effect of IBS? I am ill at the moment with flu of some description, but don't think it's swine flu, I am not eating properly but still have the stomach upsets, any ideas please what it is or what I can take to help it? My GP just gives me the usual IBS medication but it doesn't help that much. On one of the forum members sugggestions I have been taking Intestaid capsules they did help but don't anymore.