I have the same thing, the older I get, the worse my gulten intolerance gets.

I have a pretty intense gluten intolerance. It makes me very fatigued, bloated, stiff, and causes a lot of joint pain. But I don’t notice anything with lightheadedness or dizziness. Not sure what your intolerance is, but it’s worth checking for celiac! Even if you’re gluten free, cross contamination could still be causing intestinal damage if you have celiac.