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Hi. This needs immediate evaluation by a doctor
This could be what is known as poststreptococcal syndrome, even if you didn't have any symptoms of an infection like a sore throat or a fever.
It could also be a sign of an autoimmune disorder like lupus, rheumatoid arthritis, or psoriatic arthritis.
You need an evaluation and blood work to determine what's going on and if it's post streptococcal you'll need a course of antibiotics
Let me know if you need more information please