I'm 29 years old man, and lately "I've lost it". 

Anxiety from the morning, I had one severe panic attack, had to go to the ER and my pulse is always higher, it's never steady and normal.

I read that a lot of people benefited from Magnesium - which kind do you use Citrate or Glycinate and did it helped?

I'm currently stopping the Xanax I was taking for a week, because it's more of a generalized anxiety, concentrated in my heart - increased pulse and worry.

Doctors made me a TON of tests, everything under the sun twice, and said I'm totally fine physically.