I am so sorry you are going through this! I am just wondering though....what size bougie did your surgeon use? I am having surgery on 6/17 and found out mine uses a 40f. I questioned him that it sounded much larger than others here on the board and he told me the smaller the bougie, more chance for complications such as you describe.
I will keep you in my thoughts and prayers and pray that it is just a healing issue and you will be fine. {{{hugs}}}