Hi. Thanks for your query. Noted the history and understood your concerns. Dry heaves and pain in the abdomen/chest with the history of an ulcer is indicative that your problem of acidity related things like GERD has not yet resolved in spite of Amoxicillin, Clarithromycin and Prilosec. The diarrhea can be due to intestinal infection or intolerance to the antibiotics or development of imbalance of the bacterial flora of the intestine. I hope the kidney infection is over once you have taken Ciprofloxacin. I would advise you the following in such a situation: Get the upper GI Endoscopy and barium studies along with esophageal manometry studies to know the exact problem so that additional management can be done. Continue Prilosec. Watch for whether the antibiotic courses are over. Pre and probiotics to restore the bacterial flora alone may help. But it is also necessary to get the stool and blood tests done. Get an additional treatment with antacids to be taken every three hours. Domperidone may help in strengthening the lower esophageal sphincter so that the belching may stop. This should be taken half an hour before taking any food. Food should be soft and bland. Additional treatment as per the additional findings and till cured.