Knowing you and your history of "hazy" autoimmune issues, I too was wondering about gland-specific antibodies, and not only those associated with Sjogren's; one can get "weird" antibodies to the adrenals, the thyroid, possibly even the pituitary (there aren't a lot of articles on this last possibility, but it does occur), that most non-specialists won't catch.

(Sounds like you might need a good endocrinology consult at a tertiary center who'd be familiar with these interactions.)

Agree about Immunosciences; other lab I thought of was Specialty Labs in Van Nuys (they are the ones who understood why I wanted, with my nose congestion and Epstein Barr Virus profiles, to get an IgA EBV antibody profile to check for markers of nasopharyngeal carcinoma, and they were able to do it--fortunately negative).