Hi!My dear your problem seems to be little tricky and it may take a long time to come to a conclusion as regards your signs and symptoms are concerned.Sore tongue and joint pain indicate that you should get your antinuclear antibody tested and visit a rheumatologist
as there is suspicion of autoimmune connective tissue
disorder.Is there any familial history of such connective tissue disorders like rheumatoid arthritis
, SLE, scleroderma
etc. You should also undergo a thorough physical examination.