@meihanz
Do you workout? Have you recently fallen or injured your back/neck?

My suggestion is to see an orthopedic spine specialist to check your cervical spine for compression of spinal cord/ ever roots/nerves. This could cause the symptoms you are having in your neck/jaw/head/shoulders.

You may also want to see a neurologist for WMG/nerve conduction study if your upper limbs to see if there is a pinched nerve in neck.