Chronic joint pain can be indicative of various rheumatological diseases, and your physician as suspected this already.
Ensure than an ANA, rheumatoid factor, uric acid level as well as imaging the joints are done.
If the symptoms continue, I agree with the rheumatology referral, as there are more specialized tests that can be done to evaluate the joint pain.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
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