I am in the same position as you except a few symptoms are different.
You will need to seek out an interdisciplinary Dentist (neuromuscular dentistry) or an Oral Surgeon to confirm or rule out TMD. Most dentists are not able to diagnose and treat TMD, you will need to find one that is familiar with orofacial pain or otherwise specialized in TMD treatment.
Have your MRI sent to their office after an appointment is made. They may request a CT anyway, but it could save you money and unnecessary radiation.
If they decide improper bite causes your TMD, they may recommend that you visit an orthodontist for correction as well.