Digestion Issues

I have been on Wegovy for a few months now and about to start my 2.4 dose next week. However, I have been getting these awful burps that taste like cheerios. I looked it up and I think its caused by digestion slowing down and food fermenting in my stomach. Does this happen to anyone else? Is this a common thing? Is there anything you can do to stop this? Ive started taking a probiotic, and ive been taking stuff like Gas-x and Tums occasionally to see if that helps.