Hi and thanks for the query,
the pain could either be a mechanical pain or due to an inflammation. Distinction between these two depends on clinical findings and laboratory examinations. This distinction is important for the management plans shall also be different.
An X ray
of this region is very important. Blood tests to determine the erythrocyte sedimentation rate
, rhumatoid factor, ANA and a complete blood count
Consulting the rhumatologist is very important for you at this stage.
Thanks and best regards,