Mischa, I am not attacking you in anyway, infact, I enjoyed our conversation last night. But Nova hit it on the head. I dated someone who was almost 2 years post-op VSG when we met, and she had JUST started drinking soda again then, for the first time, as her program didnt allow it (at all, but she felt that at 2 years she was good). In the 3 years we were together, she gained back 66 lbs of the almost 100 she had lost. When she went back to her surgeon and they did a scope, her pouch had stretched to almost 3 times its size he had it post surgery. He attributed it NOT to her increasing her food volume increase, but rather resuming her ritual of drinking diet dr pepper often. And he's not some quack doctor, hes one of the foremost Bari surgeons in the United States.
I'm not in any way saying that this happens to everyone or even a lot of people that returns to drinking soda after their surgeries, but I just wanted to give you a real life experience with it and why people are worried about you wanting to drink something so carbonated with such fresh incisions and so soon after surgery. Carbonation expands exponentially once its digested and encounters stomach acid and causes your stomach to distend to accommodate the pressure and volume that the gas is taking up (why it makes you burp so much)... right now your stomach is so small, that even a tiny bit of expansion can really be dangerous. Maybe not catastrophic, but I would hate for you to cause yourself more pain, as you're already nauseated and not feeling well. Might I suggest getting on Amazon and purchasing some ginger chews. When I was going through my hernia and nausea issues, they were a lifesaver!
Goodluck hun, try and stay positive, I know some things may come off as harsh, but the people (the very very vast majority that I have encountered) really just want to see others (including you!) succeed!