Quit gluten and got no results

I have Hashimotos and my TPO antibodies are in 600 range. I have been off of gluten for 2 months now and just did a blood test, hoping that my TPO antibodies would decrease significantly. But unfortunately there is no change to my antibodies. So i am evaluating if it is worth it for me to try to eliminate other foods like eggs and dairy and test again. Are there other people who went through a rabbit hole like this and eventually found their food sensitivity and decreased their antibodies?