A member asked:

My knee and ankle occasionally feel weak though no true weakness or pain. ana + (no utter listed) rf 18.4. sed rate norm and rnp, smith, ssa, ssb negative. stress and anxiety last 6 months causing?

A doctor has provided 1 answer

False positives: Many people have positive ANA or RF and still don't have lupus or rheumatoid arthritis. These are nonspecific tests, and need to be combined with clinical findings that suggest the disease. Psychological distress can definitely cause musculoskeletal discomfort. Your symptoms sound mild and not dangerous. Work with your doctor to control symptoms rather than more testing. Physical therapy may help.

Answered 1/3/2016

3.4k views

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