You have an issues with your Right TMJ (Tempro mandibular joint). For ur neck back & shoulder pain, it might be referred pain or it might be due to some nerve compression.
Next Steps
Visit your Oral & Maxillofacial Surgeon ( Specialist Dentist) as soon as possible for your Right TMJ clicking. For your neck n other pain if it's referred pain he will take care. But if you are experiencing it due to nerve compression you may have to visit Neurosurgeon
Health Tips
Get you check done as soon as possible