Yes, keep on insisting. Forget the antacids. Some doctors are incredibly stupid. I complained to my GP that I had been aspirating liquids and solids and saliva. She said, "so, you are regurgitating a little stomach contents into your mouth?" WTF? Does a GP not know what aspirations are? I also have massive MG symptoms but have not flunked any MG tests. I'm on my third neuro, who finally has some sense. Mestinon helps A LOT! The only way I got that prescribed was by buying some illegally in Canada and telling the neuro, "do you want to be in charge of this trial or do you want me to go it on my own?"