You may want to check with you doc and ask to be tested for H. pylori. Many who end up with burping and other symptoms find out that they need to be treated for the condition.
Hello, your body may simply releasing what is not longer for your highest good, releasing it's lower vibrations. It is accelerating to a higher vibration to catch up with a planetary ascension. Or put this way - your body is in transformation. You can only assist it by changing lifestyle: nutrition, exercise, particularly breathing one: it has to be deep, eg, 'circular' or 'fire breathing' is good. You may ask your body what is it you can do for it? It will let you know in one or other way, just listen to it, your best & loyal friend.
Take a note of your changes: your well-being, awareness, perception. Soon or later you should notice changes in yourself.
Of course, you may run and ask a doctor....who maybe also looking for the answer...
I am well know that is not an easy & convenient process, but look, nothing is forever :)
Hmm... my reply is 2 years late, so you may figured it out yourself... then you can help us!! :)
Vlad-i