Also look out for anything that says 'caseinate' - just in case you miss that one on the labels!
Another thing to be aware of with hormone-related health conditions is (in case you don't know this yet) that a diet rich in beans, pulses and dark green leafy veggies will help your body to balance out the hormones. All the better if you can take a supplement containing wheatgrass juice, as this is a whopping kick of the greeny goodstuff (that's my technical jargon ). Also you should avoid non-organic meat products as the animals are injected with hormones to make them grow.
One more thing - avoid warming food in plastic. This has been shown to leach micro-droplets into the food, which contain a substance that mimics hormones.
I learned all of this from a nutritionist when I went to her with fibroids.
Oh, and since you're cutting out dairy it's important to make sure you don't miss out on your calcium. Don't rely on supplements as you can easily overdose and cause yourself more health problems. Dark green veggies/ pulses are good here, as are sardines (top source - with bones/ skin), the fortified Oatly, molasses...can't recall what else but you can find loads of info on the web.
Re soya, keep an eye on food labels for this as it is apparently present in up to 70% of manufactured foods. If you can be aware of how much you're taking in (i.e. eating mostly freshly-cooked foods), you should be fine. And the long-fermented soya, from Eastern products (tofu, miso, etc) is not full of phyto-oestrogens, and therefore not harmful. It's the Western products (soya milk, soya mince), which are only fermented for a short period, which retain the full whack of phyto-oestrogens. These are thought to be potentially harmful to our hormone levels.
Finally (this really is it, now!) take a look at cryingoverspiltmilk.nz - it's a website about reflux, but there's a page about how to avoid all types of dairy, with an extensive listing of the different forms of dairy in our diet.
Hope your health is improving, Pennies. What a huge weight you've had to deal with. The very best of luck.