This morning i began with upper back pain when i swallow food. as soon as the food passes through my esophagus the back pain stops. do you have any id?

Can be a diverticulu: This can be an esophageal stricture or diverticulum. Your physician can have this evaluated.

Esophageal problem: The sensation of pain in the esophagus is usually an accurate indication of the level of an esophageal problem. A visit to a GI doctor would likely provide the most rapid diagnosis and treatment. Often an upper endoscopy would provide the answer.