Just last night I had an extremely strange experience. Came out of nowhere, and I spent about 10-15 minutes lying on a couch convinced that I was about to die.
It started with a sudden bout of lightheadedness and nausea. This started abruptly while I was sitting in a chair. I went and lay down to avoid passing out and hitting my head on something. Then I started hyperventilating. The lightheadedness did not go away. I started to be extremely concerned that something fatal was happening and I was about to die. My surroundings took on a strange and surreal quality. I took a moment to ponder the question of whether I feared dying at that exact moment -- I decided that I didn't fear death, but I was afraid of what would happen to my family if I died.
After a while these feelings subsided, and I was left with a strange tightness/bloated feeling and clamminess in my hands and feet. I spent about 10 minutes trying to control my breathing, then went to sleep.
Has anything similar happened to anybody here?