Hi CoCo!
I have colitis and Candida together in my intestines. I have to cook ALL my own food (95% of it) because virtually everthing (all canned soups and some "fresh," all packaged foods and things you wouldn't imagine contain yeast extract). Anything over-fermented, even strong cheddar cheese, disrupts my stomach. I am allergic to most vegetables unless they are cooked, and most fruit with the exception of citrus (go figure). I am lactose intolerant and drink goat's milk (tastes much better than cow's milk!). More than one beer and I'm in trouble (yeast).
Most importantly, I take a good probiotic twice a day. If I hold to it, I am almost asymptomatic.
I got it from massive does of antibiotics during several operations years ago - killed all my bugs dead, even the good varmints.
So lately I've seen all the gluten-free foods appear (Even soy sauce!). I've been trying seveeral and they affect me about 50% of how they would normally... but the yeast factor still lurks. But mine is a litle more rare. There are a thousand variations on this theme. But it took me 4 years of double-blind testing to isolate the problem. Prescribed drugs (sulfazalene) did nothing at all.
I think the key is to listen to your body more than what people say. About 90% of people's advice on my health issues turn out to make my health actually much worse. I listen to my body, I get it down. Very consistent. But you have to be desperate enough to dso double-blind experiments, as you will do without your favorite foods for awhile.
peace!
Randy