hi.. thanks for your query.. i completely understand your concern regarding acid reflux disease. let me first explain you briefly about GERD - gastro-esophageal reflux disease. This is chronic (long term) disorder in which gastric acid (required for digestion) re-fluxes from stomach into the oesophagus causing heart burn, cough, neck pain, continuous burping, throat pain and pain between the shoulder blades. The most common reason for developing this problem is due to abnormal lower esophageal sphincter. this structure is at present at the end of oesophagus and it normally holds up preventing the stomach contents (acid and bile juice) from enter into oesophagus. when this sphincter relaxes abnormally, it leads to acid reflux. acid reflux disease sometimes causes severe injury to oesophagus leading to its inflammation and strictures. you said your endoscopy and other tests are all negative so you need not worry about complications at this point of time. If i encounter a similar case in my clinic i would have suggested the same medications like Tab. RAZO OR OMEZ 20mg on empty stomach early morning, tab. LESURIDE 25mg twice daily, Tricaine mps gel. Razo or Omez help in decreasing the excessive acid production from the stomach lining. Lesuride is a pro-kinetic agent used in GERD and Tricaine gel contains ALUMINIUM and MAGNESIUM hydroxides which neutralizes the excessive acid. All these drugs are effective in managing Acid reflux disease. i would suggest you to start the treatment immediately. Hope i answered all your queries. have a good health. thank you