Symptoms are, pain in fingers, wrist, hips. hand swelling. pain and severe itching in scalp and neck. right carotid pain and inflammation. brain fog, fatigue, syncope, chest pain and tachycardia. 4 + ana, and positive rnp. homogeneous and speckled?

Autoimmune disorder is likely, but chest pain & tachycardia warrant cardiac investigation as well. They may be related to the autoimmune disorder or be separate issues. Collaboration between a rheumatologist & cardiologist would be best.

You likely will require additional evaluations and testing to arrive at a specific diagnosis, but indeed the post suggests a number of potential inflammatory disorders. A rheumatologist would be an excellent consultant, if not seen previously.