Re: Neurological autoimmunity ?
Good morning. This is a P.S. to what I wrote last night. The tests you list were unfamiliar, but after reading some, they appear (to me) like they're in the ballpark of Myasthenia Gravis (MG), LEMS, and Autoimmune Autonomic Ganglionopathy (AAG). As for where to & what next, the best place to start is obviously with your neurologist, to find out what conditions have been tested for & ruled out, and what he/she intends to look for next.
Another approach would be to first do some homework on your own before speaking with the dr. Look for conditions that are "differential diagnoses" to MG, LEMS, and AAG, so you could ask pointblank whether you've been evaluated/tested for each. BTW, I suspect that list would be lengthy and would include things like SLE (lupus), RA (rheumatoid arthritis), Graves disease, hyperthyroidism, myositis and dermatomyositis (those are AI's that involve muscles), ALS, Multiple Sclerosis, etc.
You didn't say how long you've had symptoms, or how many rounds of labs and other tests you've had. If this process has gone on & on without getting you anywhere, I'd probably research other neurologists in my area, probably at teaching hospitals. (I put together a "Plan B" after years of getting nowhere locally. When I finally concluded that I needed a better rheumatologist, I just pulled out my annual magazine feature on "best doctors" arranged by speciality that I'd saved.)
Doctors approach a diagnosis in tiers, it's the nature of the profession: they first look at the group of most likely candidates, then the next most likely group, and so on. I probably wouldn't consider myself "stuck" until I'd given my doctor the chance to speak. Also, I'd definitely want to see that he/she is willing to refer you to other appropriate specialists. For example, let's say that on the list of conditions that haven't been considered, some are within rheumatology and endocrinology. Well, I'd want those OTHER specialists to do those evaluations. Anyway, I hope something above is useful. Drop another post when you can, OK? Best wishes, Vee