Hello
I share your concern
Looking at your description this could be caused by
Hiatus hernia,
acid reflux disease or liver and
gall bladder disease bloating can be caused by Aerophagia (swallowing of air)
I would like more information to help you better like
Your age and relevant medical history
since how long you have this problem?
In my opinion you should consult a doctor for an Chest X ray blood investigation like
hemoglobin, CBC and liver function test and an endoscopy if need be
Meanwhile you can start with anti acidity like
pantoprazole or omeprazole with antacids and anti emetic like domperidone
Have small and frequent food, avoid overeating
Don't lie down immediately after food
Have lots of fresh fruits and vegetables
Avoid fatty fried spicy and junk good
Hope this helps you
Please feel free to ask for more clarification I will be happy to help you
best wishes