Mystery belching...worried!!

If anyone has some insight I'd really appreciate it. I've had unexplainable frequent burping for the last 2 months, with no other symptoms. Normal endoscopy and bloodwork. Just had an abdominal ultrasound today (requested this from my GI doctor). My mind always wanders to cancer and extremely serious issues. I know it's not stomach cancer because endoscopy was perfectly normal. I read ONE thing online that said someone had been belching a lot before being diagnosed with pancreatic cancer (although nothing else actually lists belching as a symptom of this). Does anybody have any insight? Should I not be thinking about these cancer worries related to the burping?

No reflux, no heartburn, no pain. Consistent belching throughout the day even when not eating, but worse when eating or drinking...please reply!

Hi. Have antacids helped you at all? I have had some digestive issues. One of my symptoms was non stop belching that was not helped but antacids much. I found that getting on a PPI (proton pump inhibitor) helped. I use rabeprazole. However it took long-term use for me to benefit from it. It's a relatively harmless medecine and can be taken long term. Maybe you should ask your doc to be put on one.
Hope this helps.