Hello, GM.
Your reports are showing erosive gastritis which is caused by pitta as per Ayurveda.
Gases are formed due to improper digestion or improper bowel movements.
Do you have constipation?
Since when you are having this issue and what's the severity?
Next Steps
Need to find out the reason. Avoid the reason and take proper pitta shamak medicines.
Health Tips
Till then start with pure kokam water with sabja daily once.
1 small spoon shuddha ghee with lukewarm water in morning.
take care. Have a healthy day.