Any insight into this, or advice I would really appreciate. I am going through a really bad time. I am experiencing an overwhelming fear that I am going to drop dead at any second. I feel almost like a floating sensation where I am disconnected from my own body. It is a very difficult thing to describe, I keep getting pings of sheer impending doom and a feeling of nausea. I can't stop it, if feels like it is getting worse. I have had full blown panic attacks before ( according to my doctors and the emergency room they say they are only panic attacks, I have a hard time accepting this). I can't handle these symptoms of impending doom, overwhelming intrusive thoughts saying at any second I am going to drop dead, and will be powerless to stop it. A complete catastrophic loss of control. This is so hard to deal with, I don't understand, someone please help.