No PTH problems, but I've had hypothyroidism for 20 years, celiac for at least 14, and MGUS for 6 years. I also have collagenous colitis and I had Reiter's syndrome in 1989-1990. Once you have an autoimmune disease you tend to collect others. MGUS origin is unknown, but since folks with celiac have a higher incidence of blood cancers there could be some link. A possible correlation between PTH and celiac is the malabsorption of nutrients, including minerals, from a damaged GI tract. Mostly one needs to limit the illnesses as well as you can with diet, meds (synthroid for me), exercise, and stress management.