After an xray and ct was performed on my chest, the findings stated that my heart shifted to the left to where my esophagus couldn't be seen. explain?

Tough to explain: As described, unless you have sidus inversus, the heart shifting to the left certainly would not cause any issues with obscuring the esophagus (which would normally be to the R of the heart). Your best answer to the reading of the x-rays would come form the Ordering Dr. who if they do not know, could ask the reading radiologist as to why the reading is such. Best wishes.