Hello
Welcome to health care magic I appreciate your concern.
Bloating and burping might be related to
indigestion, excessive swallowing of air (Aerophagia), excess intake of carbonated drinks, ill fitting denture and
Acid peptic disease.
I would advise you to identify any of triggering factor among above mentioned, you should take antiacidity medicine like
pantoprazole or
ranitidine group of drugs with antacids for 4-5 days.
You shouldn't worry much about the diarrhoea, take lots of fluids like ORS, lemon water and fruit juices to counter
dehydration and electrolyte imbalances.
If it doesn't subside in a day or two than you should visit nearest Emergency care for physical examination, recording of blood pressure and stool test for ova,cyst or protozoa.
you may require a course of antibiotics under medical supervision.
Hope this answers your question please feel free to ask for follow up question I will gladly answer you.
Best wishes