I have all the symptoms of hypothyroidism, but my bloodwork has come back fine.  I also was diagnosed with RA even though that bloodwork came back normal and am on Methotrexate.  Is it possible that I am actually hypothyroid and thats the cause of the swollen knuckles?
Hello, Do you have other signs? What signs of hypothyroidism do you have? Have you done a TSH and free T4 test to rule it out? I think that the swollen knuckles may be the sign of RA. What analysis have you done? Usually, the examinations done for arthritis are ESR, uric acid, ANA, C reactive protein, rheumatoid factor, cyclic citrullinated peptide antibody. Wish you good health. Hope I have answered your query. Let me know if I can assist you further.