I got no heart problems that I know of, but while playing discovery it has happened that my heart starts racing like crazy and I think wtf. When it happens it's mostly in the situation when I'm just about to kill an enemy that I've been trying to get for a long time, and he has like 5% hull left. Possibly some dormant power-surge hunter-instinct thing inherited from our early ancestors or something.
Do you guys sometimes get that too?
Hope he recovers soon and that it doesnt happen to anyone else here.