Well it's wishful thinking, but unfortunately welcome to the world of GERD. The lead milkshake is simply so they can take pictures of your stomach, and ephagous to see if you have any ulcers, or errosion of the area.
Wait till they want to shove the booster cable down your throat, so they can take little pictures. I believe the proper term is endoscopy..
Good luck, but a different diet, and possibly a naturalist may be able to help yet.. Other than that, your a lifer..