I can't figure out whether what I'm experiencing is panic disorder, or generalised anxiety, or what... Every day, from waking up until going to sleep, I have a constant feeling of an adrenaline rush in my chest, the kind of feeling you'd have if you were about to be hit by a truck or suddenly attacked by a knife-wielding maniac. It never leaves me, and there's not necessarily any accompanying thoughts of worries or fears. ...