I would highly recommend going to see your primary care doctor
about this issue, especially since the symptoms seem fairly severe and are not improving with home medication remedies.
The medications that you are taking right now at home for the symptoms are all medications that are used to treat heartburn, or acid reflux. I do think it is quite likely that you are experiencing a variant of acid reflux, especially given how the symptoms start at night (presumably after you have laid down) and are accompanied by burping. Sometimes, acid reflux can be quite severe and might not be responsive to nonprescription medications that you typically get in a pharmacy.
It also may be the case that you have a more severe inflammation of the stomach, such as gastritis, or even a stomach ulcer
. These may give similar symptoms as acid reflux, but will not always be as immediately responsive to medications.
Your primary care doctor will be able to evaluate your symptoms and help you decide whether you need prescription strength medications and whether you need additional workup or referral to a specialist, such as a gastroenterologist
. Make an appointment as soon as you can.