Hi. Thanks for your query. Noted the history and understood the concerns. Staying outside in hotel means eating too outside food with pain and bubble like feeling in left abdomen, uncomfortable palpitations, irregular bowel all are indicative of an intestinal infection. I would advise you the following: Get the stool tests. Consult a Doctor for clinical evaluation for probable diagnosis and to get a prescription for an antibiotic active against intestinal infection, metronidazole, probiotics and electrolyte solution. Plenty of oral fluids. I hope this should give you relief. Try taking boiled and cooled water and take only freshly prepared food to avoid recurrence.