Hello and welcome to HCM,
I have understood your problems and i shall try to help you out
You Seem to have an acute episode of gastritis
You need to immediately do the following:
1. Take an antireflux medication like pantoprazole-d twice daily before food. You doctor will know about this.
2. Take only bland food
3. Do not take oily and spicy food.
4. If you do not feel better then get an upper GI endoscopy
and get back to me or any ENT with the report
5. Consult a cardiologist
for the proper treatment of PACs
6. Avoid caffeine in any form which may trigger or aggravate PAC
take care and get well soon
Dr Sriram nathan