@j77 I had a blood test and a lip biopsy that came out negative. They can be false positive false negative. My rheumatologist diagnosed me with sjogren's disease. My ENTs are the one that did the blood test and the lip biopsy and they say nope you don't have it. Then my rheumatologist checked all my blood test and all my symptoms and she says you sure do have it. So watch out. Go to a doctor until you get the answers that you know are true for you.