OP: You mention "this illness" but I don't see a name it's given.

It's strange to me but a couple things that come to me, why not take grape seed extract for a few months at least and see what gives. I know it's a life saver in my life, and no brainfog here and good mind. I know grape seed extract can help with nerve damage. I've been taking it for years. And it cleans and thins our blood. If you take a pharma blood thinner then can't do both.

And I'd think about seeing a top notch naturopath , these doctors work on so much other issues mainstream docs do not.