Food flavoured burping. Due to this.

In 2019 I was suffering from acid reflux, then I started medication. After some time I was feeling better. But this issue is coming in between & when I start to take precautions It go away. Since a year before I was facing Constant & food flavoured burping (whatever I ate burp smells comes of it for atleast 1 hr). But I had consulted with doctor & had some medications (Reabequick-D & Ethonil-B) & burps are controlled. When I start eating, after sometime I start burping. I have read some articles on GERD & Barret esophagus. After that I am feeling very anxious & very fearful thinking this may be serious/fatal issues & getting stressed. In Jan -20 I had endoscopy but nothing was found. Request you to please guide if anything serious. I am have fearing of cancer due to this.