Sjogrens syndrome usually causes dryness of mucosa (eyes, mouth etc) and arthralgia
, recurrent parotid (salivary) gland infections or swelling is common.
There are other overlap syndrome such as with Rheumatoid arthritis
, Raynaud's known as Mixed Connectibve Tissue Disease (MCTD) where symptoms can be variable and Undifferentiated CTD (UCTD) does not fit in any one disease pattern as the name suggests.
Blood tests (ENA panel or complete profile) can help with the diagnosis.
NSAIDs are recommended for arthralgia taken with PPIs to prevent gastritis
but for immunosuppressant drugs, you really need to wait until you have seen the Rheumatologist/Immunologist.