I sometimes get this strange feeling like I'm about to pass out then all of a sudden feel this immense surge of adrenalin followed by sweating shaking scared heart pounding is this normal sometimes I seem to just talk myself into one it could be something as silly as a programme on TV that has something I fear on it and it will cause it! Or if I feel enclosed like I can't escape normally at work? I have been living with high levels of stress for a long time now does all this sound normal?