Hi Nan. Yes, swollen glands and the involvement of the lymphatic system are hallmarks of Sjogren's, but also rheumatic conditions in general. You may have already done some of this research, but thought you might be interested in seeing this fairly recent article on "Lymphatic Function in Autoimmune Diseases:" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6435962/.
I did find a number of articles mentioning swollen lymph nodes as an RA symptom. Did you see Andrew's article on the subject (https://rheumatoidarthritis.net/living/swollen-lymph-nodes/)? The concern, of course, is in noticing a new symptom when you are not new to RA (this always catches Kelly's attention), but, as we all know, RA rarely stays still. Hoping this ends up being just another one of those RA things that pops up from time to time. Best, Richard (RheumatoidArthritis.net Team)