Was glad to see your post on this. Having same problem, and wondering what it could be, as well. parasites hadn't occurred to me (in that organ), but I suppose if they can travel in your bloodstream, as well as harbor in the brain, they can migrate anywhere. But I agree w/Tracey about not panicking. I'm on the P&B shakes, eating little and exercising a lot to see if this corrects the problem. But keep posting. Interested in hearing how your situation works out.
Stay positive.