Do I need to take mri? Need to take mri?

I have constant burning right lower jaw pain under ear, ear pain , neck pain for 5 months now. Went to ENT and no infection in ear and sinus. Went to dentist and said a tooth fracture could be the reason. I did root canal and still the same symptoms. He said it could be neuralgia or tmjd or eagles syndrome. I had cbct scan. Tmj specialist said it's muscle tightness and jaw joint issues. I have sore pain on one spot on top of head above ear. It's sore and pressure like pain and hurts to touch. Only one spot is constantly sore. Also feel pain and tightness at the base of the head and neck. Neck is so tight and stiff. I have a small lump on neck. Did neck USG and no abnormalities found. I also hear ringing sound in ear. And some humming music sound while lying down when ac or fan is on. If it's off, I am not hearing it. Whether it indicates nerve issue? Do I need to take mri? I have constant burning pain in jaw under ear, neck. Sore pain on top of head.It feels like pressure on that spot