2.5 burping suddenly

My daughter, who just turned 2 1/2 has been burping more often. It started with her mimicking her dad and finding it funny, but now we’ve noticed within the past month she’s been doing it more frequently maybe like 5 to 7 times a day and it seems like sometimes it’s triggering her gag. We are waiting to see if it is just a thing she picked up but wanted to see if anyone else has had this happen with their toddler. We plan on making an appointment soon if it continues.