supraventricular tachycardia, sounds exciting but scary as anything. Basically at stupid o clock in the morning my heart rate went ballistic for what seemed like ages, in reality it was around an hour of 250 to 300 bpm. Had all the tests, never had it before and nothing seems wrong but it scared me a bit, so I'll not be waiting on anything thats doable or putting it off until tomorrow just in case
