Glad to read your test came out great. I am post op 1 month and I experienced the exact same thing you are. I swallowed great in hospital and for the first week and then after that swallowing was difficult. I burped right from the get go. Swallowing gets harder, as like Sharon said, you are getting close to peak swelling of the wrap area from the surgery. Even water was hard to swallow at times. I had to resort to warm water. Believe me, in time, it will get better. I am still eating soft foods mostly mashed after 1 month. It takes time. It's hard to understand it because we feel good on the outside. If something you eat is hard to get down, resort back to softer foods and it will get better.
Be patient with yourself and your healing and you have found a great forum to help you through this. It is a slow process I am finding.