Thanks for your replies. I wish that my doctor had used something else for my blood pressure.

In answer to the questions, I have had an echocardiogram, a stress test, EKG, and I don't know what all blood tests. The why's of my hypertension are not answered. At one point I was told that my heart was severely enlarged; now it is not. Weird stuff.

I would not just quit taking the drug. I doubt that I would live a week. I would like to try something else under my doctor's care, but he may be afraid to try.

I just got to thinking; my MG symptoms were so mild that nobody even believed that there was a problem before I started on beta blockers.

If my MG getting worse is just a side effect of the drug, I guess that the side effects may get less severe like they do for so many drugs.