Apparently you have an stomach upset
If symptoms of chest discomfort persists then better to meet a cardiologist and get further investigation to confirm whether they are cardiac in nature
to me ECG appears reasonable but only on ECG not possible to rule out subclinical issues
Next Steps
meet cardiologist to rule out cardiac problems if chest problems persist
Health Tips
Avoid fried spicy food add curd and fruits
Pantocid DSR over the counter imperically is not a good idea