Welcome to the board.
You could always try celiac disease testing. There is a (small) chance that you would still have high autoantibody levels after being gluten-free, especially if you have not been 100% gluten-free (meaning frequent accidents, if that applies to you). In some people the autoantibody levels can stay high for quites some time, especially the tTG IgA and tTG IgG. The EMA IgA, DGP IgA and DGP IgG tend to go down a bit faster.
When googling for answers, use our discussion board as a springboard into better research. We make mistakes on here, so don't take everything we say as fact. Do more gogling but use medical websites to find the harder facts, or medical journal articles. The cauliflower is one example, that usually is only a problem for some people with Hashimotos (which 10-15% of celiacs have) but I have Hashi's and still eat it... when I have to. LOL
What I mean is that we have many members here and in such a large group you will find many issues that may or may not be related to celiac disease, but not everyone has all of those issues. Some around here have issues with strawberries, others with soy or high histamine foods. Three is a lot a variation.
Dairy is a good one to look out for though. About 50% of celiacs, when they first go gluten-free, are lactose intolerant because the villi which makes the enzyme lactase, has been damaged. Many regain the ability to consume dairy after 6 months or a year or two.
A food and symptom journal is a good idea when you are dealing with multiple sensitivities like you are. It might help you see patterns a little bit better.
My main advce would be to hang in there. About 70% of celiacs START to notice improvements after two weeks on the diet, and that's just a start. It can take months to years before you truly feel well. I have been gluten-free for 2 years and I still have some issues that I am dealing with. It takes a long time. Hang in there.
ps. As a favour, could you not use the small or different fonts? I have poor eyesight, and I was tired yesterday so my jittery eyes could not focus on the fonts. Thanks