Can't say that I've ever heard of anything like that - but that doesn't mean that your symptoms aren't Autoimmune-related. It seems like each one of us has a "customized" version of the disease. We're sort of like snow-flakes - no two are alike... Document as much as possible your symptoms, time-frame, activities that might have aggravated it (like physical exercise) and any illnesses you have had in the past 5 years or so. Any medical records from the past might also show irregularities. Most importantly, be involved.
Keep us posted.