Hi, Welcome to health care magic, Stomach bloating and upset is caused mainly because of air swallowing known as erophagia. The other causes could be irritable bowel syndrome,dyspepsia, constipation,bowel obstruction or parasitic infestation etc You might need to undergo routine blood count,stool examination for routine microscopy/ova/cyst and ultrasound abdomen and if symptoms persists then upper GI endoscopy. You should be monitored for vitals signs like pulse,blood pressure etc. You can be given plenty of water with lemon juice (added salt),coconut water. The important thing is to combat bloating and for which you would require antiemetic and antacids drugs with antibiotics (norfloxacin with antiprotozoals like ornidazole preferred) with other water and electrolyte fluids. So,it would be advisable that if you consult to physician for all routine blood investigation and proper treatment. Home treatment might help but you actually requires complete course of treatment as I explained. Thanks and Regards,