It could be GERD related if you have a hernia. I have had similar pain with hiatal and paraesophageal hernias. I have also had problems with food getting stuck in my esophagus which is another possibility for the pain around the LES that you describe. Have you had a barium swallow or upper GI series? If not, I would recommend seeing if you can get one - that should show a hernia or if things are getting stuck in your esophagus. I have had mild to extremely severe chest pain with hernias or food getting stuck in my esophagus. Good luck!