Regarding your statement about the use of beta blockers, I learned while living in Germany that beta blockers should not be used by people who suffer or who have suffered from depression.
After being treated in a German hospital for panic attacks, I was given beta blockers to stop my heart from racing and almost jumped out of a window. I thought I was going crazy. It was the beta blockers.
I discharged myself from the hospital and started seeing an alternative med physician. She became very angry after learning what I was given, and the fact the hospital never asked if I had a history of depression.