Well its fairly simple. From time to time I will have a 10 minute to 40 minute episode. What happens is that my hearing becomes very sensitive as to where a whisper in another room i can hear. Also when i walk it feels like im running, the same goes for talking or any background noise, its very loud and fast. Also my heart rate drops to a very low bpm. I've had it for 16 years now and no one can tell me what is happening? Oh also sometimes If I dont physically remember to breath I will stop, it's very odd. It happens once a month regardless of how much i eat, sleep, drink, etc. Anyone have a clue?