Balance issues

So for some months now I have been having trouble with my balance. When standing straight up my body sways. My legs move and twitch. My toes wiggle. It’s really annoying. I am seeing a neurologist. I’ve had blood work and a cat scan as well as an ekg all were fine. Going for an mri on Tuesday. I do suffer from anxiety so I wonder if it could be causing it. But I have it most of the time when I stand. Anyone have any other idea? I’ve been told could be something like restless leg syndrome. But I am not in any pain. Also have been told it could be something like ms, which is pretty scary. I don’t want to worry but I’m freaking out.