Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.
Considering your complaints and the sudden onset of symptoms, in my opinion it might also be related to gout and systemic lupus, except
rheumatoid arthritis.
However sudden onset of symptoms, may occur in rheumatoid arthritis patients.
You have to perform other blood tests (uric aicd level,
creatinine, antinuclear antibody titer etc) to diagnose these two other conditions.
Anti inflammatory treatment(
ibuprofen, naproxen) and corticosteroids(
prednisone) may help in each of these diagnosis, so you should continue using as prescribed by the doctor or
consult a rheumatologist for further diagnosis and treatment.
Hope I have answered your query. Let me know if I can assist you further.