How Can Acid Reflux Be Treated?

I have been having heartburn overtime I eat anything, and when I bend down like to exercise or pick things up. I have eliminated coffee, which helped at first, but now the heartburn is back and seems to be mostly when I eat. this has been going on for over a year. I have tried most every kind of OTC meds. but nothing works long term, the heartburn comes back daily. the pain is mostly a very uncomfortable burning, but is now accompanied by a more painful pressure. it feels like someone is pushing a handle of a screwdriver into my middle chest. I also have been having trouble swallowing meats and salty foods.