We're you on a restrictive diet like that before your diagnosis? Some people can eat like that, but others don't do so well.

I have a friend who has tried to be vegetarian, but can barely last a week before he starts feeling awful. He then tried just eliminating red meat, while still eating fish and chicken. That lasted about a year, after which he said he felt weak, was always cold, and had brain fog. He then ate a hamburger and claimed he almost immediately felt the brain fog lift. He concluded that there was a nutrient in red meat that he needs (not iron; he was taking supplement).

estrogen: meat, white and red. Flax seed OK but make sure it is not from China or India, as the soil is contaminated with cadmium and copper. Re soy: OK in moderation, t be careful of soy powders. Eggs although high in fat, don't seem to have estrogen (as far as I can figure). Fish is excellent: cold water, salmon is best in moderation sardines and mackerel better, cause they're little -- no mercury. Larger fish -- swordfish, halibut, should be eaten minimally if at all. No shellfish, apparently.
Eat mushrooms, not the supplements. Broccoli and kale really important--eat every day. Beans, lentils, quinoa all good. Whole gain starches -- brown/red rice, steel cut oats, bulgar, farrow all good.
Fruit and vegs are IMPORTANT. Don't skimp.