Talk to me about intolerances

[PenguinArmy]

We've worked out that dairy, soy (in yogurt, milk and pretend meat form, don't know about tofu yet) and egg give DD dreadful incredibly soft, neccesiating a whole outfit change nappies. Thankfully I was always worried about this so she's always had oat milk for breakfast. She is 20/21 months.

We've just been trying to not feed her possible trigger foods for 1-2 weeks and then do a test.

Things we still thought to try are fermented soy (we're vegans so would like to maximise protein options) and also milk containing things e.g. cake, chocolate.

Anything I should know or other things to watch out for? I know bread normally has soya flour in there, do you reckon this will be low enough to not worry or we should have a go at excluding that as well. Could just make our bread for a few weeks.

A bit rambly but a few pointers most gladly welcome

Ha a similar thing with DS and potato starch in foods. At first we cut everything with potato starch so we could be sure there were no other things he had a problem with. This is how we discovered tomato can sometimes be a problem. Afterwards we introduced some foods which we knew to have low amounts to see if that would give any reaction. The funny thing for us is that he can eat some brands of spaghetti shapes in tomato sauce but not others with the same ingredient list on the tin.
We have had to check the labels on everything and advise relatives to do the same, Fish fingers in breadcrumbs are OK but the battered ones contain potato starch and he has a reaction. Brand X product is fine but brand Y of the same item has potato starch.
Until you get used to the products I would suggest checking the labels on everything and try to do a test even for a different brand.
DS wasn't diagnosed until late on so he ( and I at first) assumed that it was my cooking making him ill, this makes it hard as he asociates me cooking with not feeling well and it is hard to get him to eat home made food.

:( I hope that changes for him

she doesn't eat potato yet and I try and keep the food groups separate for (so scoop out some cooked veggies before adding tomatos). I do have a suspicion with tomatoes and some foods have brought out a rash around her face - celery, kiwi