Oh I know what you mean. For about a year I got really weird feelings too, some quite scary in fact. GP had me referred for psychiatric assessment - panic attacks. However, after joining on here, it would appear they were in fact very strong flushes. Floored me every time I had a bad one, to the point where if I didn't lie or sit down I'd have collapsed. Never knew when it would happen, occasionally when driving the car. However, suffice to say I've only had the odd one since & I force myself to concentrate on my breathing until it subsides.