How did you find you have a yeast intolerance? Was there a test you took? I've had some GI issues that have also limited my consumption of beer despite having previously brewed beer along with many other things I can no longer eat.
If you took a test that determined it was a yeast issue disregard but I'm curious if you've tried things like hop water (carbonated water with hops from beer). If you've had any reactions to that when it's just hops and water.
Does bread give you issues? What about sourdough bread vs traditional bread yeast bread?