My brother, who is 39, has had 6 of the following attacks, the 5th was 3 years ago, the 6th, a few days ago.

He said it feels like a lightning bolt struck his chest and the pain radiates from there, then he collapses, but is conscious, and has temporary whole body paralysis, which lasts around 20 - 30 minutes then goes away. He is left with some tingling sensations for a while after that. So far physicians haven't found a cause yet. His dad had these symptoms occasionally. He died at age 40, they said of an anyourism. My brother does have an appointment with a cardiologist next week.