You're not even one month post-op. Could you be getting some reflux at this point? Of course.
The other, even more likely situation is that you've got some food backing up at the wrap site, and not getting through to your stomach. That's very common during recovery. Try sipping water after you eat...sip it slowly over time, so each swallow lets some more of the food that is stopped at the wrap get through to the stomach.
What you're describing is very common.
Have a good day!