Hi Thanks for writing in HCM I need further information regarding your complaints1.) how long you are suffering with chest tightness 2.) any breathing difficulty on exertion/chest pain 3.) any difficulty in passing stool/loose stools 4.)any chronic analgesic/smoking intake history5.)are u under any medications for long term 6)factors aggravating your chest tightness 7.)about your appetite. 8.) about your occupational history . Acid reflux and chest tightness are two different issues as acid reflux unlikely to cause chest tightness.my advise to do ECG,chest X ray pa view and spirometry to detect any obstruction in airway and to consult chest physician .regarding acid reflux my advise is to drink plenty of water,regularly timed food with every 3 hour interval but all in small quantity for eg 2-4 biscuits with adequate water and to avoid spicy and oily food,no alcohol,no coffee,no junk foods . i usually prescribe my patients T.pan 40 mg 1-0-1 (before food) syp.gelusil (antacid) 2teaspoon Thrice daily.if symptoms persists contact general surgeon I would be glad to provide answers to any further queries.Thanks for using HMC Have a good day!Regards, Dr. V.KUMARAGURU general surgeon