Well, my worries continue. I had a modified barium swallow today that showed a prominent food-getting-stuck point in the esophagus. Clear problem. The radiologist called it a 'cricopharyngeal bar' at the pharynx-esophagus juncture but was surprised as it should not be sore and painful - vs my throat that has been hurting for 3 months now and worsening!

The X-rays in the swallow did not appear to show a mass though - should I be relieved of that? Recall the MRI apparently did not either, but i do not know if it looked that far down. The radiologist still suggested concern and that more tests would be needed. Would an endoscopy be the next step?
Thanks again for your thoughts and advice.