HI. Very interesting history. To recapitulate: 9 years history -started after a 2 month trip to Jamaica. ..................... No drugs/ drinks ..................... 3 years break- when in Cayman Islands ..................... started again since moving to Canada. Are there any other problems like actual vomiting, constipation, any respiratory distress ? I would suggest to rule out underlying causes by doing routine blood tests, LFT, KFT, PULMONARY FUNCTION TESTS, X-ray chest and ultrasonography of abdomen. This may find an underlying cause, and if found incidentally can cure your problem by treatment of the causative factor. I hope you have already undergone the Upper GI Endoscopy. You can try ( if not taken before) a tablet of Raglan / Domperidone 10 mg exactly 8 hourly ( say one at 6 am- 2 pm- 10 pm). Plenty of sound sleep. Acupressure also helps if done by and taught to you by an expert. another thing to try is to have dry biscuits the moment you get up, avoid taking any fluids. Try keeping a green cardamom in mouth , crush a bit and chew slowly. Something may help you overcome this distressing problem. Would like to hear from you what has helped you the most.